Browse our collection of book series, each with a complete reading order guide.
The Forbidden Billionaires series by Lili Valente is a four-book billionaire romance series about off-limits attraction and high-stakes relationships.
Forbidden Bodyguards is a five-book contemporary romance series by Ainsley Booth featuring protection-detail romances, published between 2015 and 2020.
The Forbidden Borders trilogy by W. Michael Gear is a science fiction series about interstellar empires, rebellion, and the remnants of a fallen civilization.
Complete reading order for the Forbidden Confessions series by Shayla Black, a collection of steamy romance novellas featuring forbidden relationship scenarios.
Complete list of all Forbidden Desires books in order by Bianca Cole. Full reading order for this dark taboo romance series.
The Forbidden Fairy Tales series by R.S. Elliot features eight romance novels pairing forbidden attraction with different professional settings, published between 2020 and 2022.
Forbidden Fairytales is a dark fantasy romance series by Caroline Peckham and Susanne Valenti, putting a twisted spin on classic fairy tales.
Forbidden Fangs is a paranormal romantic comedy series by Keira Blackwood pairing vampire love interests with absurdly titled adventures involving familiars, bodybags, exorcisms, and cowboys.
Forbidden Fantasies is a romance series by Lena Little with seven standalone books exploring taboo relationship dynamics and power imbalances.
Forbidden Fruit is a three-book dark romance series by ChaShiree M. featuring taboo relationships with powerful men.
The Forbidden Hearts series by Alisha Rai is a contemporary romance trilogy about two feuding families in a small town and the couples who defy their rivalry.
Forbidden Love is a nine-book western romance series by Patricia PacJac Carroll published in 2026, featuring couples whose relationships face social or personal barriers.
The Forbidden Love series by Cat Cahill features nine Western romance novels about forbidden relationships, all set for publication in 2026.
Forbidden Love is a two-book MM romance series by Riley Hart about relationships that push against social boundaries.
Forbidden Love with a Thug is a three-part urban romance series by Shvonne Latrice, published in 2020.
The complete reading order for Shelly Bell's Forbidden Lovers series, a romantic suspense trilogy with forbidden-relationship themes.
Forbidden Loves and Dashing Lords is a four-book Regency romance series by Abby Ayles, published between 2020 and 2021, featuring romances that cross social boundaries.
Forbidden Mates is a paranormal romance series by Lola Glass featuring fae and supernatural creatures in forbidden mate bond stories.
The Forbidden Omegaverse series by Evangeline Anderson is an omegaverse romance series featuring forbidden bonds and pack dynamics.
The Forbidden Plays series by Zoe Dawson is a three-book sports romance published in 2014.
Forbidden Reads is a two-book dark romance series by K.A. Knight featuring taboo storylines, published in 2020 and 2021.
The Forbidden Trilogy by S.R. Watson is a contemporary romance series exploring attraction and taboo, with three books published from 2014 to 2018.
The Forbidden Wish by Jessica Khoury retells the Aladdin story from the perspective of the jinni, blending Arabian mythology with romance and adventure.
Forbidden! by Lynne Graham collects thirteen romance novels from the 1990s featuring taboo attractions and relationships that break social conventions.
The Forbidden! series by Charlotte Lamb features thirteen Harlequin romances built around taboo attractions and relationships that break social rules.
Complete reading order for the Force of Nature series by Kathi S. Barton, a 10-book paranormal romance series published between 2012 and 2014.
The Forced Disappearance / Civilian Personnel Recovery Unit series by Dana Marton follows civilian rescue specialists on dangerous missions in three romantic suspense novels.
The Forced to Serve series by Donna McDonald is a seven-book sci-fi romance saga featuring demons, sirens, and healers in space. Begin with The Demon of Synar (2012).
The Ford Stevens Military-Aviation Thriller series by Lawrence A. Colby features four action-packed novels about a combat pilot, published between 2016 and 2020.
Foreign Affairs by Lynne Graham collects 24 romance novels set in exotic international locations, published between 2001 and 2012.
The complete Foreign Affairs series reading order with 24 Harlequin romances set across France, Italy, Spain, the Caribbean, and beyond, published from 2001 to 2012.
The Forensic Genealogist series by Nathan Dylan Goodwin follows Morton Farrier as he uses genealogical research to solve cold cases. Read all 15 books in order.
The Forensic Science series by R.J. Parker explores the role of forensic analysis and DNA evidence in criminal investigations.
Forerunners: Ideas First is a University of Minnesota Press series edited by Kelly Oliver, publishing short, timely works on politics, culture, and contemporary thought.
The Forest of Good and Evil series by Gena Showalter is a two-book YA fantasy retelling of classic fairy tales with a dark twist.
The Forest Pack series by G. Bailey is a three-book shifter romance published between 2017 and 2019.
Complete reading order for the Forever series by Lucy Darling, a 4-book romance series published in 2021.
The Forever series by Trilina Pucci is a two-book contemporary romance duet about second chances and finding your way back to the person you love.
Reading order for Cary Hart's The Forever series, a contemporary romance trilogy about lasting love and commitment.
The Forever After Retellings series by Heidi Kimball reimagines classic fairy tales as clean Regency romances, with six adaptations all published in 2019.
The Forever Charmed Mysteries by Denise Swanson begins with A Call to Charms (2019), a cozy mystery with a magical twist.
The Forever Diva series by E.N. Joy is a Christian fiction trilogy that continues the stories of women in the Diva universe.
The Forever Fairies series by Maddy Mara is a children's fantasy trilogy about magical fairies, published in 2024.
The Forever Faithful series by Karen Kingsbury is a three-book Christian fiction series about families facing tragedy and holding onto faith through devastating circumstances.
Forever Friends is a children's fiction series by Sandra Byrd following girls navigating friendship, faith, and growing up.
The Forever Hero trilogy by L.E. Modesitt Jr. follows an immortal hero's centuries-long effort to restore Earth's ravaged environment across three military science fiction novels.
Forever Home series by Lucy Gilmore in order. A three-book contemporary romance series set around a puppy rescue, starting with Puppy Love.
All 3 books in Jennifer Griffith's Forever Home Romances series in order, starting with The Love Notes (2020). Clean small-town romance.
Forever Love is a seven-book Karen Rose Smith romance series from 2013-2014, collecting stories of enduring love and second chances.
The Forever Marked series by Jay Crownover follows the children of the original Marked Men couples in a four-book second-generation romance series.
Forever Safe is a fourteen-book romance series by ChaShiree M. exploring different facets of lasting love and protection.
Forever Safe Christmas is an eighteen-book holiday romance series by ChaShiree M. delivering Christmas-themed love stories with warmth and seasonal cheer.
The Forever Safe Christmas series by Shaw Hart is an eighteen-book series running from 2019 to 2021, starting with Her Christmas Wish.
The Forever Safe Summer II series by Shaw Hart is a thirteen-book series running from 2020 to 2020, starting with Burning Up.
Complete list of all 2 Forever Texas books in order by J.A. Johnstone. A family fights to build and defend a ranch in early Texas.
The Forever Twilight series by Peter Crowther is a post-apocalyptic horror trilogy about a world plunged into supernatural darkness. The three books were published between 2002 and 2012.
The Forever Wilde series by Lucy Lennox in reading order, M/M romance following the Wilde family.
The Forever You series by Mickey Miller is a four-book contemporary romance series featuring enemies-to-lovers and college-set love stories.
The Forever Yours series by Grace Meyers is a six-part romance following characters at a shoreside retreat.
The Forever Yours series by Andrew Grey is a fourteen-book historical romance collection set in Regency-era England, published between 2015 and 2021.
The Forever Yours series by Cara Bastone features four interconnected contemporary romances set in Brooklyn, starting with When We First Met.
The Foreverland series by Tony Bertauski is a science fiction series about a virtual reality world where nothing is what it seems.
The Foreworld Saga in reading order. A collaborative seventeen-book historical fiction series about martial arts history and the Knights Templar.
The Foreworld Saga Cimarronin graphic novels by Neal Stephenson. Two graphic novels set in seventeenth-century Japan.
The Forge Trilogy by Meghan March is a three-book dark romance series featuring deals with dangerous men, all published in 2019.
Forged by Greg Rucka is a science fiction comic series about elite soldiers fighting in a brutal interstellar war with decaying equipment and dwindling support.
All 16 books in the Forged of Steele series by Brenda Jackson in reading order, a contemporary romance series featuring the Steele family.
The Forges of the Federation series by Raymond L. Weil follows the formation of a new interstellar federation as humanity expands into the galaxy.
The Forgetting Jack Cooper series by Erin McCarthy is a 6-part romantic comedy serial published in 2017 about moving on from a famous ex.
The complete reading order for the Forging Silver Into Stars series by Brigid Kemmerer, a young adult fantasy set in the same world as the Cursebreakers.
The Forgiven series by Garrett Leigh features four MM romances exploring themes of redemption, healing, and second chances.
The Forgotten Castles series by Jamie Carie is a Christian historical romance trilogy set in Regency-era England and Europe.
Forgotten City is a three-book monster romance series by K.A. Knight, published between 2022 and 2023.
The Forgotten Coast is a mystery series by Dawn Lee McKenna set in Apalachicola, Florida, following Lieutenant Maggie Redmond as she investigates crimes that threaten her small Gulf Coast community.
The Forgotten Empire series by Raymond L. Weil is a thirteen-book science fiction saga about a rediscovered human empire and the wars that follow its return to galactic politics.
Forgotten Gods by Laura Greenwood is a twenty-five-book paranormal romance series drawing on Egyptian mythology, published between 2018 and 2026.
Forgotten Gods: Origins by Laura Greenwood is a four-book prequel series exploring the early history of the Forgotten Gods universe, published between 2020 and 2022.
Forgotten Kingdoms by G.K. DeRosa is a nine-book fantasy romance series featuring dragons, fae, serpents, and other supernatural beings.
The reading order for Chandelle LaVaun's Forgotten Kingdoms series, a fantasy romance saga featuring dragons, fae, elves, and other mythical beings.
The Forgotten Legion Chronicles by Ben Kane in reading order. Five historical fiction novels about Roman soldiers in the ancient world.
Forgotten Realms Non-Fiction includes Champions of Ruin (2005), a D&D sourcebook for the Forgotten Realms setting.
The Forgotten Realms Anthologies collect short stories set in the D&D Forgotten Realms world, published between 1993 and 2010.
The Forgotten Realms Anthologies are a long-running collection of short story volumes set in the Forgotten Realms world, published between 1993 and 2010 and featuring stories from dozens of authors.
The Companions Codex trilogy reunites Drizzt with his resurrected Companions of the Hall as they face new threats in a changed Forgotten Realms.
The Finder's Stone trilogy by Kate Novak and Jeff Grubb follows the warrior Alias and her companion Dragonbait through three Forgotten Realms adventures, starting with Azure Bonds (1988).
The Homecoming trilogy sends Drizzt back to the Underdark and the dark elf city of Menzoberranzan as a civil war erupts among the drow.
The Hunter's Blades Trilogy pits Drizzt and the defenders of Mithral Hall against a massive orc invasion led by a cunning orc king.
Legacy of the Drow continues Drizzt Do'Urden's story as the dark elves of Menzoberranzan launch a devastating attack on the surface world.
The Pathfinder Tales series features dozens of fantasy novels and stories set in the Pathfinder roleplaying game world, many edited by Howard Andrew Jones.
The Forgotten Realms: Pathfinder Tales series by Michael A. Stackpole is a 73-book series running from 1999 to 2021, starting with The Glass Prison.
The Paths of Darkness series follows Drizzt and his companions as they confront a resurrected assassin and face personal challenges that test their bonds.
The Sundering series is a multi-author Forgotten Realms event that reshapes the world's gods and magic, featuring Drizzt alongside other iconic characters.
The Dark Elf Trilogy is the origin story of Drizzt Do'Urden, following his birth in the underground city of Menzoberranzan and his escape to the surface world.
Forgotten Realms: The Harpers is a fantasy series following the secret organization of do-gooders known as the Harpers across the Forgotten Realms world.
The Harpers is a multi-author Forgotten Realms novel series about a secret organization dedicated to fighting tyranny, published between 1991 and 1998 with contributions from authors like Elaine Cunningham and Ed Greenwood.
The Icewind Dale Trilogy is where Drizzt Do'Urden first appeared, featuring his adventures with the Companions of the Hall in the frozen north of the Forgotten Realms.
The Lost Gods is a three-book Forgotten Realms trilogy published in 1997 that crosses over between the Forgotten Realms and Dragonlance settings, featuring the bard Joel and a plot to reunite twin goddesses.
Forgotten Realms: The Nobles is a six-book fantasy series set in the Dungeons & Dragons Forgotten Realms world, with multiple authors including Victor Milan.
The Sellswords trilogy follows the unlikely partnership of assassin Artemis Entreri and the cunning drow mercenary Jarlaxle on their own adventures.
The Transitions trilogy takes Drizzt through a period of major change as the Forgotten Realms setting itself undergoes a magical catastrophe known as the Spellplague.
The Forgotten Ship series by J.N. Chaney in order. Six sci-fi novels about the discovery of an ancient vessel and its secrets.
The complete reading order for The Forlorn Dagger series by Jaxon Reed, a fantasy trilogy featuring wizards and adventure.
Former Bad Witch Cozy Mystery is a four-book series by Corrine Winters about a reformed witch solving crimes, published in 2023.
A list of all non-fiction books by Forrest Bryant Johnson in order, covering military history topics from World War II rescues to frontier cavalry.
The Forrester Square series by Cathy Gillen Thacker is a seventeen-book series running from 2003 to 2004, starting with Date with Destiny.
Forsaken is a four-book dark paranormal romance series by K.A. Knight, published between 2019 and 2023.
The Forsaken Wyrdwood trilogy by R.J. Barker in reading order, dark fantasy set in an ancient forest.
The Forsaken series by Penelope Barsetti is a dark fantasy romance trilogy about a king, a queen, and the dangerous politics that bind them together.
Forsaken Brethren is a standalone paranormal romance novel by Sky Purington, published in 2014, set in the same connected universe as her MacLomain series.
Forsaken Fae is a three-book M/M urban fantasy romance by R.A. Steffan set in the Last Vampire World, published in 2021.
The Forsaken Gods series by G. Bailey is a two-book paranormal romance published in 2018 and 2019.
The Forsaken Lords series by Kristin Vayden is a Regency historical romance series that began with How to Silence a Rogue in 2017.
The Forsaken Mercenary series by Jonathan Yanez is a military sci-fi action series following a mercenary through fourteen books of combat and survival.
Forsworn Oath is an ongoing epic fantasy series by David Estes beginning in 2024, following characters bound by oaths with consequences that shape the fate of their world. The series is scheduled to conclude with Bloodsworn in 2026.
Forsyth Harmon's non-fiction work, including The Art of the Affair (2017), an illustrated history of creative and romantic relationships.
Forsyth Harmon's standalone novels, including her 2021 illustrated debut Justine.
Fort Misery by J.A. Johnstone is a standalone Western novel set at a remote Army outpost on the Arizona frontier in 2023, where a hardened captain fights to hold the line against Apache attacks.
The Fortress Security series by Rebecca Deel follows private security operatives who protect clients from danger while navigating their own love lives.
Fortress Security: Artemis is a spin-off romantic suspense series by Rebecca Deel featuring a specialized team within the Fortress Security organization.
The Fortune series by Terry Harknett in reading order — 4 crime novels published between 1970 and 1973, starting with Stopover for Murder.
The Fortune and Glory series by Sandra Sookoo features Regency romance novels about characters seeking fortune, glory, and love.
Fortune de France by Robert Merle is a 13-volume historical saga set during the French Wars of Religion and beyond, following the Siorac family through decades of upheaval from the 16th to 17th century.
Fortune Favors the Fae by Alice Winters is a sixteen-book MM fae fantasy romance series published in 2024.
Fortune Favors the Fae is a sixteen-book LGBTQ+ fae romance collection featuring stories from Michele Notaro and other authors, all published in 2024.
Fortune Hunter is a four-book contemporary romantic suspense series by Christina Dodd, following four women — and the dangerous, charming men they become entangled with — across stories blending romance, caper elements, and genuine peril.
Fortune's Children is a multi-author romance series featuring the wealthy Fortune family, with 27 books published between 1996 and 2017 including contributions from Maggie Shayne.
Complete reading order for the Fortune's Children series, a 27-book Harlequin romance saga spanning 1996 to 2017 following the wealthy Fortune family through love and intrigue.
Complete reading order for the Fortune's Island series by Shirley Jump.
The Fortunes of Fate series by Sandra Sookoo features romance novels where fate plays a role in bringing couples together.
Fortunes of Texas is a 17-book multi-author romance series following the Fortune family through love, secrets, and Texas drama from 1999 to 2010.
Fortunes Of Texas: All Fortune's Children is a six-book 2015-2016 Harlequin continuity series following the Fortune family's latest generation as secrets emerge and romance blooms.
Complete reading order for the Fortunes of Texas: Cowboy Country series, a 22-book Harlequin romance collection blending Texas ranching with Fortune family drama from 2005 to 2015.
The The Fortunes of Texas: Digging for Secrets series by Teri Wilson is a six-book series running from 2024 to 2024, starting with Fortune's Baby Claim.
Fortunes of Texas: Fortune's Secret Children is a multi-author romance series to which Michelle Lindo-Rice contributed, published in 2024-2025.
The Fortunes of Texas: Hitting the Jackpot is a six-book Harlequin multi-author romance series following the Fortune family through windfalls and new love, published from 2022 to 2023.
The complete reading order for The Fortunes of Texas: Lost...and Found, a six-book 2010-2011 Silhouette romance series following the Fortune family through new love and rediscovered connections.
Complete reading order for the Fortunes of Texas: Rambling Rose series, a six-book Harlequin romance collection set in the small Texas town of Rambling Rose in 2020.
Complete reading order for the Fortunes of Texas: Return to Red Rock series, a six-book Harlequin romance collection bringing the Fortune family back to Red Rock, Texas in 2008-2009.
Fortunes of Texas: Reunion is a 17-book multi-author romance series from 2005 to 2014, following the Fortune family in a Texas-set continuity.
Complete reading order for the Fortunes of Texas: Reunion series, a seventeen-book Harlequin romance collection bringing the Fortune family together from 2005 to 2014.
Fortunes of Texas: Reunion is a seventeen-book 2005-2010 Harlequin continuity series bringing the extended Fortune family together for a reunion that rekindles old bonds and sparks new romances.
The complete reading order for the Fortunes of Texas: Secrets of Fortune's Gold Ranch series, a multi-author Harlequin romance series.
The Fortunes of Texas: Secrets of Fortune's Gold Ranch series by Teri Wilson is a seven-book series running from 2025 to 2025, starting with Faking It with a Fortune.
Complete reading order for The Fortunes of Texas: Southern Invasion, a six-book Harlequin continuity series published from 2012 to 2013 with contributions from Marie Ferrarella.
Complete reading order for Fortunes of Texas: The Hotel Fortune, a six-book Harlequin continuity published from 2020 to 2021 centered on the Fortune family's hotel venture in Texas.
Complete reading order for the Fortunes of Texas: The Lost Fortunes series, a six-book Harlequin romance collection about newly discovered Fortune family members in 2018-2019.
Complete reading order for the Fortunes of Texas: The Missing Fortunes series by Marie Ferrarella, spanning eleven books from Healing Dr. Fortune to A Fortune's Texas Reunion.
Complete reading order for The Fortunes of Texas: The Rulebreakers series, a six-book Harlequin continuity published in 2018 with contributions from Marie Ferrarella and other romance authors.
The Fortunes of Texas: The Rulebreakers is a seven-book 2018 Harlequin continuity series following Fortune family members who defy expectations and forge their own paths -- to love and beyond.
Complete reading order for the Fortunes of Texas: The Secret Fortunes series, a six-book Harlequin continuity published from 2016 to 2017 featuring Marie Ferrarella and other romance authors.
Complete reading order for Fortunes of Texas: Welcome to Horseback Hollow, a six-book Harlequin continuity published from 2013 to 2014 featuring Marie Ferrarella and other authors.
The Fortunes of Texas: Whirlwind Romance series features six multi-author Harlequin romances set in the Fortune family universe, with Karen Templeton among the contributors.
Complete reading order for Fortunes of Texas: Whirlwind Romance, a six-book Harlequin continuity series published from 2011 to 2014 featuring Marie Ferrarella and other romance authors.
Forty's The New Forever by Sara Bourgeois is a midlife witch mystery series with six books published in 2022. The series follows a woman who discovers her magical powers at forty.
Forward is a six-book collection of science fiction novellas published in 2019 by Amazon Original Stories, featuring speculative stories from multiple authors.
All books in the Forward Books of Poetry series in order. This annual poetry anthology series collects shortlisted and commended poems from the Forward Prizes, the UK's leading poetry awards.
The Foster Saga by Judith McNaught is a contemporary romance series spanning seven books, following interconnected characters through stories of love, secrets, and second chances.
Complete reading order for the Foster's Pride series by Kathi S. Barton, a 7-book lion shifter romance series published between 2020 and 2023.
Fostering Faust is a three-book fantasy series by William D. Arand published in 2018 and 2019.
Foul Deeds and Suspicious Deaths is a 24-volume non-fiction true crime series by M.J. Trow, covering murders and suspicious deaths across British towns and cities from 2004 to 2017. Each volume focuses on a specific location, examining historical cases in detail.
Found in Oblivion is a seven-book rock star romance series by Taryn Elliott continuing the story of the Oblivion band members and the people in their orbit.
The Found on The Shelves of The London Library series by Jerome K. Jerome is a three-book series running from 2016 to 2016, starting with On Corpulence.
The Found Things series by Paula Brackston is a four-book series running from 2018 to 2021, starting with The Little Shop of Found Things.
Complete list of all 15 Foundation and Robot series books in order by Isaac Asimov. Full chronological reading order including the Robot novels and Foundation trilogy.
The Founding of the Commonwealth series by Humanx Commonwealth is a three-book series running from 1999 to 2002, starting with Phylogenesis.
The Foundling series by Hailey Edwards is a five-book urban fantasy about a woman who discovers her inhuman origins while fighting supernatural threats in the American South.
The The Foundling series by Angie Smith (CXVI) consists of Sex Lies and Swimming Naked, published in 2019.
The Foundlings series by Wendy Corsi Staub is a four-book suspense series about missing and adopted children, secrets, and dangerous pasts, beginning with Little Girl Lost (2018).
The Foundlings series by Audrey Harrison follows orphaned heroines finding love and family in Regency England across three novels.
The Fountain Creek Chronicles series by Tamera Alexander is a three-book series running from 2006 to 2007, starting with Rekindled.
The Four series by Sloane Kennedy is a four-book M/M romance series featuring connected heroes named Luca, Lex, Con, and King, published from 2019 to 2021.
The Four Arts series by M.J. Scott is a romantic historical fantasy set in the kingdom of Anglion, where royal witches wield magic governed by four mystical arts amid court intrigue and political turmoil.
The Four Dukes series by Violet Hamers follows four very different dukes through four connected Regency romances published in 2024.
The Four Elements series by J.R. Rain is a paranormal trilogy published in 2019.
Four Fathers is a four-book multi-author contemporary romance series featuring single-father heroes, with J.D. Hollyfield among the contributing authors.
The Four Forces Security series by Alexis Winter follows bodyguards and security professionals who fall for the people they are hired to protect.
The Four Groomsmen of the Wedpocalypse series by Lilian Monroe follows four groomsmen through chaotic romances tied to a disastrous wedding.
The Four Horsemen Sagas is a shared-universe military science fiction series about mercenary companies operating under alien employers.
The Four Horsemen Sagas feature Kevin Ikenberry's contributions to the mercenary military sci-fi universe, with 10 novels from 2019 to 2023.
Complete reading order for the Four Horsemen Tales series, featuring Jody Lynn Nye's contributions to the military sci-fi shared universe created by Mark Wandrey and Chris Kennedy, with 34 entries published from 1978 to 2019.
The Four Hundred series by Joanna Shupe is a three-book Gilded Age romance series starting with A Daring Arrangement (2017).
The Four Kings Security series by Charlie Cochet is an eight-book series running from 2015 to 2026, starting with Beware of Geeks Bearing Gifts.
Four Mercenaries is a three-book M/M dark romance series by K.A. Merikan about a group of mercenaries and their captive, published in 2019.
The Four Nightmares of Castle Pointe series by A.R. Breck is a dark romance duology starting with Wicked Little Sins (2021).
The Four Quarters of Imagination is a sci-fi mystery series by Lumen Reese set in a futuristic Brooklyn theme park where the rich live out fantasies while the poor fill roles in their stories.
The complete reading order for Callie Hart's Four Seasons series, a two-book dark romance duet consisting of Winter (2015) and Summer (2016).
Four Seasons is a four-book contemporary romance series by Kristina Beck, with each book paired to a season, published between 2019 and 2020.
Four Seasons Short and Sweet is a two-book novella series by Annie Seaton with short romantic reads tied to warmth and travel themes.
The Four Sisters series by Audrey Harrison follows four siblings through Regency romances across four novels published between 2014 and 2015.
The Four Social Romances is an unfinished series by Emile Zola that follows his vision for a utopian future after the Rougon-Macquart cycle.
Four Sons is a four-book companion romance series to Four Fathers, following the adult children of the original series' protagonists in their own love stories.
The Four Valenti Brothers series by J.S. Cooper features arranged marriage romances set within a powerful Italian-American family, starting with Before The Arrangement.
Four Weddings and a Baby is a Harlequin romance series by Dani Collins featuring four books of billionaire romance connected by weddings and surprise pregnancies.
All 5 books in the Four Weddings and a Fiasco series by Bella Andre (writing as Lucy Kevin) in order, from The Wedding Gift to The Wedding Kiss.
Reading order for the Four Weddings and a Fiasco Universe by Kathryn Le Veque, a multi-author medieval romance series centered on wedding celebrations.
The Four Weddings and A Kiss series by Mary Connealy in reading order. A five-book Christian romance collection featuring frontier wedding stories.
The Four Week Fiance series by J.S. Cooper is a fake relationship romance about a woman who agrees to pose as a man's fiancee for one month, beginning with My Fake Fiance.
The Four Worlds series by Angela J. Ford is an epic fantasy saga featuring warriors, magic, and a divided world across eight books.
Four Worlds is a five-book science fiction series by Skyler Ramirez set across multiple planets with themes of war, truth, and revolution.
The Four Worlds series by Helen Scott is a paranormal romance trilogy exploring lost mythological civilizations including Atlantis, Hyperborea, and El Dorado.