Browse our collection of book series, each with a complete reading order guide.
The I Wish You All the Best series by Mason Deaver follows Ben De Backer, a nonbinary teen navigating family rejection, new friendships, and first love in this acclaimed YA story.
The I, Starship series by Scott Bartlett is a space opera following AI-driven starships and their crews through large-scale interstellar conflict.
The I'll Be Seeing You series by Suzanne Hayes and Loretta Nyhan is a World War II epistolary fiction trilogy following two women whose letter-writing friendship carries them through wartime.
The I'll Be Seeing You series by Loretta Nyhan is a three-book historical fiction series set during World War II, exploring women's friendships and home front experiences.
The I'm Your Groom series by Teresa Southwick, featuring two romances about grooms and weddings.
The I'm Yours series by Shaw Hart is an eleven-book series running from 2020 to 2020, starting with Seducing Archer.
The complete I'm Yours series by Mica Rae in order, a five-book contemporary romance series with one-word titles starting with Hush and Cherish.
Iain Maitland's non-fiction works include two titles published between 2016 and 2018.
Iain Maitland's standalone novels span 2017 to 2025, featuring eight independent stories.
Short stories and novellas by Ian Alexander (pen name of Joshua Graham). Includes Legend of the Tiger's Throne, a fantasy tale connected to the Sojourner Saga.
Ian Buruma's non-fiction covers Japanese culture, European history, and the intellectual tensions between East and West across two centuries.
Ian Buruma's two novels explore identity, performance, and cultural deception through characters caught between worlds.
Ian C. Esslemont's anthology contributions include essays and fiction in fantasy collections such as Writing Fantasy Heroes and Imaginarium 3.
Anthology contributions by Ian Caldwell, featuring his work alongside other thriller and mystery writers.
Ian Caldwell's standalone novels are intellectual thrillers set at Princeton University and inside the Vatican.
Ian Frazier's anthology appearances and edited collections include contributions to The Best American Essays, The Best American Travel Writing, and other multi-author volumes.
Ian Frazier's essay and humor collections gather his best New Yorker pieces and other short-form writing spanning decades of his career.
Ian Frazier's non-fiction books span travel writing, American history, humor essays, and cultural observation, published from 1986 to 2026.
The Cursing Mommy's Book of Days is a standalone comic novel by Ian Frazier, published in 2012.
The Ian Hale series by Logan Ryles is a three-book thriller series published between 2025 and 2026.
Ian Hamilton's anthology contributions include New Review Anthology, published in 1987.
Ian Hamilton's standalone novels include Bonnie Jack, a 2021 novel separate from his Ava Lee and Uncle Chow Tung series.
Gillian Roberts's anthology contributions include stories in multi-author mystery collections.
Gillian Roberts's non-fiction includes a mystery writing guide and works on literary culture and criticism.
Gillian Roberts's short fiction includes mystery stories featuring her trademark wit and sharp plotting.
Gillian Roberts's short story collections gather her mystery fiction into themed volumes.
Gillian Roberts's standalone novels include early works of mystery and literary fiction published between 1982 and 1992.
The Ian Roper series is a British crime fiction series spanning eleven novels of murder and investigation published between 1993 and 2002.
Ian Tregillis Anthologies includes two collections featuring his short fiction alongside other science fiction and fantasy authors.
Ian Tregillis Short Stories/Novellas includes Hammer and Tongs and a Rusty Nail, a fantasy novella published in 2020.
Ian Tregillis Standalone Novels features Something More Than Night, a noir-inspired fantasy about angels and the death of the archangel Gabriel.
Ian Whates' anthologies represent his extensive editorial work through NewCon Press, covering science fiction, fantasy, horror, and alternate history across dozens of volumes since 2008.
Ian Whates' short stories and novellas showcase his science fiction and fantasy writing in compact form across individually published works.
Ian Whates' short story collections gather his science fiction and fantasy short fiction into themed or career-spanning volumes.
Ian Whates' standalone novels include science fiction and fantasy works published outside of his main series, offering self-contained stories.
The Ibarra Crusade series by Richard Fox is a five-book military science fiction sequence set in the Ember War universe, following a controversial figure's campaign.
The Icarus Brothers series by Sage Young is a five-book romance following the Icarus family through stories of revenge, redemption, and love.
The Ice series by Vladimir Sorokin in reading order, a mystical science fiction story about a cult seeking 23,000 chosen people who can be awakened by striking them with cosmic ice hammers.
Ice and Fate Duology is a two-book fantasy romance series by H.L. Burke, both published in 2019.
The Ice Cream Shop Mysteries by Shari Randall in reading order. Three cozy mysteries set in a family ice cream parlor.
Ice Dragons is a three-book paranormal romance trilogy by Ann Gimpel featuring arctic dragon shifters, published in 2019.
Ice Intruders by Lana Stone is a six-book sports romance series featuring hockey players, published in 2024.
All 6 Ice Mountain Amish romance books by Kelly Long in reading order, following the courtships and marriages of families in an Amish mountain community.
All 35 books in the Ice Planet Barbarians series by Ruby Dixon in reading order. The complete guide to the alien romance series that became a TikTok sensation.
The Ice Planet Barbarians series by Ruby Dixon follows human women stranded on a frozen alien world who bond with blue-skinned alien warriors, spanning 25 books from 2015 to 2024.
All 36 books in the Ice Planet Barbarians Bedtime Stories collection by Ruby Dixon in order. The complete Ice Planet Barbarians reading experience with bonus content.
All 35 books in the Ice Planet Barbarians Slice of Life collection by Ruby Dixon in order. Short companion stories from the Ice Planet Barbarians universe.
Ice Planet Barbarians: Slice of Life is a series of short companion stories set in the Ice Planet world, focusing on everyday moments and domestic life.
All 4 books in the Ice Planet Clones series by Ruby Dixon in order. The latest spinoff set after Ice Planet Barbarians and Icehome.
Ice Planet Clones is a spinoff series from Ice Planet Barbarians featuring cloned sa-khui warriors finding their mates, published from 2023 to 2025.
All 4 books in the Ice Planet Honeymoon series by Ruby Dixon in order. Bonus novellas following favorite couples from the Ice Planet Barbarians series.
Ice Planet Honeymoon is a companion novella series revisiting favorite couples from Ice Planet Barbarians during their honeymoon period.
The Ice Planet: Perma series by Anna Hackett, featuring the science fiction romance novel Winter Fusion.
The Ice Reavers series by Mark Albany is a fantasy duology set in a frozen, monster-haunted world.
The Ice-Cream Cafe series by Sue Watson includes two romantic comedies set around a seaside ice cream shop, starting with Ella's Ice-Cream Summer.
Both Icefire duology books by Judith & Garfield Reeves-Stevens in reading order — Icefire and Freefall — a pair of techno-thrillers about global catastrophes.
The Icehome series by Ruby Dixon is a sci-fi romance spinoff of Ice Planet Barbarians, following a new group of survivors on a frozen alien world across eighteen books from 2017 to 2022.
The Icerigger series by Humanx Commonwealth is a three-book series running from 1974 to 1987, starting with Icerigger.
All Ichiro Kishimi and Fumitake Koga books in English. The Courage to Be Disliked and The Courage to Be Happy explore Adlerian psychology through Socratic dialogue.
Icons is a nine-volume series of short illustrated books on major cultural figures including Jesus, David Lynch, Edgar Allan Poe, and Van Gogh, with Karen Armstrong contributing to the volume on Jesus.
Icy Dukes is a five-book Regency romance series by Tiffany Baton featuring cold, reluctant dukes who are won over by their brides.
Icy Lords is a two-book Regency romance series by Daphne Byrne published in 2022, featuring a cold-hearted duke and a scandalous earl.
The complete reading order for the Ida May Chronicles by Deanna Chase, a comedic paranormal mystery trilogy featuring a sassy ghost-hunting heroine.
The complete reading order for the Ideal Arrangements romance series by Kianna Alexander.
The Ideal Man series by Penny Reid reimagines Jane Austen novels as modern romantic comedies with updated settings and Reid's signature humor.
The Idegu Ojonugwa Shadrach Plays series by Idegu Ojonugwa Shadrach is a six-book series running from 2017 to 2020, starting with Unexpected.
The Idegu Ojonugwa Shadrach Poetry series by Idegu Ojonugwa Shadrach is an eleven-book series running from 2017 to 2022, starting with The World of Trouble and Other Poems.
Idegu Ojonugwa Shadrach's short fiction includes four works published between 2018 and 2020.
Idegu Ojonugwa Shadrach's standalone novels span 2018 to 2021, featuring four independent stories.
Identity is a standalone romance novel by Kathy Coopmans exploring themes of hidden identities and self-discovery through love.
Idioms and Cliches is a western romance series by Janice Cole Hopkins with five books published in 2022.
The Idlewood series by M.L. Bullock follows the ghosts and secrets of the Idlewood estate in a Southern gothic mystery.
A 93-volume comprehensive guide to IDW Publishing's Transformers comic line, covering the entire run from 2006 to 2019 including all main series, spotlights, and crossovers.
The If Only... series features eight young adult romance novels published between 2014 and 2016, each exploring a 'what if' romantic scenario.
The If Wishes Were... series by Teresa Southwick in reading order, a three-book romance trilogy.
The If You Can series by Christina C. Jones is a three-book contemporary romance trilogy published in 2015, beginning with Catch Me If You Can and following one couple through a connected love story.
The complete reading order for Jacqueline Woodson's If You Come Softly series, a two-book young adult romance about interracial love and tragedy.
Iggy Loomis is a two-book middle-grade series by Jennifer Allison about a young boy's adventures, published in 2013 and 2014.
The Ignite series by R.J. Lewis is a three-book dark romance that follows one couple through passion, destruction, and rebuilding between 2013 and 2018.
Ijeoma Oluo's non-fiction includes So You Want to Talk About Race, Mediocre, and Be a Revolution.
The Ile d'Oleron series by Karen Abbott features three romance novels set on the French Atlantic island of Ile d'Oleron.
The complete reading order for Pedro Urvi's Ilenian Enigma series, a five-book fantasy series and his first published work, available in both Spanish and English editions.
Ilium is a two-book science fiction series by Dan Simmons that reimagines Homer's Iliad in a far-future setting where posthumans recreate the Trojan War.
Illicit Love is a four-book forbidden romance series by Nichole Rose where the attraction is intense and the relationships break all the rules.
The Illusion series by D. Kelly in reading order. A twelve-book rock star romance following the music industry from Side A through Broken Beats.
The Illusionists series by Rosie Thomas follows a family connected to the world of stage magic in early twentieth-century London.
Reading order for the Ilse Beck FBI Suspense Thriller series by Ava Strong, seven books about an FBI agent facing criminals who defy expectations.
The Imager Portfolio by L.E. Modesitt Jr. follows imagers — people who can create objects from mental images — across 13 novels spanning different eras of the nation of Solidar.
The Imaginata Children's series by Uvi Poznansky includes two illustrated children's books published in 2014.
The Imagination Box is an award-winning children's trilogy by Martyn Ford about a boy who discovers a device that can bring anything he imagines to life.
The Imagine Ink series by Verlene Landon is a five-book contemporary romance series set around a tattoo shop, published from 2015 to 2018.
The Imagines: Celebrity Encounters Starring You series is a multi-author fan fiction anthology from Wattpad writers, published in 2017. Find all five books in order.
Imaginings is a series of short fiction collections by Stephen Baxter, gathering shorter works from across his career. The collections cover a wide range of his themes, from far-future space opera to alternate history and hard science fiction.
The Imago series by N.R. Walker is a paranormal M/M romance featuring shapeshifters and interconnected stories spanning from 2014 to 2021.
The Imdalind series by Rebecca Ethington is a nine-book paranormal romance saga about magic, prophecy, and love, beginning with Kiss of Fire (2012).
The Imdalind Academy series by Rebecca Ethington is a spin-off set in the magical world of the Imdalind universe.
The first book in The Immortal Apprentice Trilogy by James E. Wisher, a new fantasy series.
The Immortal Blood series by Piper Fox in order, a five-book vampire romance series starting with Stolen Hunger.
The Immortal Brothers series by Jacquelyn Frank is a paranormal romance trilogy about cursed immortal warriors.
Complete reading order for the Immortal Dark series by Tigest Girma, a YA dark fantasy duology blending vampire fiction with Ethiopian mythology.
Reading order for the Immortal Devotion series by Raylin Marks, four vampire paranormal romance novels.
The Immortal Doc Holliday series by M.M. Crumley reimagines the legendary gunfighter as an immortal navigating supernatural threats in the modern world.
The Immortal Dragons series by Ophelia Bell in reading order. A nine-book dragon shifter romance series published between 2016 and 2018.
The Immortal Enemies series by Gena Showalter is a paranormal romance duet about enemies forced together by fate.
The Immortal Files by Robert Liparulo is a supernatural thriller duology about ancient beings living in the modern world.
The Immortal Gene series by Jonas Saul is a two-book thriller about a genetic discovery that could change the course of human mortality.
The Immortal Great Souls is a four-book cultivation fantasy series by Phil Tucker following a character who must grow in power to survive in a dangerous world. The series began with Bastion in 2021.
The Immortal Guardians series by Dianne Duvall follows immortal warriors who protect humanity from vampires driven mad by a virus, blending paranormal romance with fast-paced action.
The Immortal Guardians Companion reading order covers the full reading sequence for Dianne Duvall's Immortal Guardians universe, including crossover books and related stories.
Immortal Hunters MC is a paranormal romance trilogy by Helen Scott featuring a motorcycle club of supernatural hunters, reimagining the Van Helsing legend.
The Immortal Monsters series by Rebekah R. Ganiere begins with a vampire romance inspired by the Dracula legend.
The Immortal Operative series by J.R. Rain follows an immortal spy in two action-thriller novels.
Graphic novels featuring Immortal Red Sonja, Dynamite Entertainment's 2022-2023 series placing the She-Devil with a Sword across multiple historical time periods.
Immortal Vices and Virtues by Jenna Wolfhart is a twelve-book dark fantasy romance series with morally gray characters and intense supernatural themes.
The complete Immortal Vices and Virtues: All Hallows' Eve series in reading order. An 18-book multi-author paranormal romance collection, starting with Reject Me (2022).
Immortal Vices and Virtues: All Hallows' Eve is a Halloween-themed paranormal romance subseries within Mila Young's Immortal Vices and Virtues world.
Immortal Vices and Virtues: Her Monstrous Mates is a monster romance subseries by Mila Young within the larger Immortal Vices and Virtues world.
Immortal Vices and Virtues: Shadow Shifter Bonds is a shifter romance subseries within Mila Young's Immortal Vices and Virtues world.
The Immortal Witches series by Maggie Shayne follows immortal witches across centuries as they fight for survival and love in a world of magic, reincarnation, and dark power.
Immortal's Ascent is a five-book progression fantasy series by Luke Chmilenko featuring characters fighting their way through a brutal arena world.
Immortal's Blood by Chris C.C. Humphreys is a fantasy novel about immortal beings whose lives span centuries of human history.
The Immortals is a six-book paranormal romance series by Alyson Noel about a teen who discovers she is immortal after surviving a car accident.
The Immortals series by Tamora Pierce is a four-book YA fantasy set in Tortall, published between 1992 and 1996, with international editions.
The Immortals series by L.J. Vickery features ancient immortal warriors living in the modern world, each finding their fated mate.
This reading order for the Immortals After Dark series by Kresley Cole includes international editions and companion novellas alongside the main paranormal romance novels.
Immortals at Midnight is a paranormal romance series by Amy Pennza starting with Moon Destiny, featuring immortal beings and destined love, published in 2022.
Nicole Blanchard's Immortals Ever After series, featuring the dragon paranormal romance Deal with the Dragon (2019).
Imogen Matthews standalone novels in order. Complete list of standalone novels by Imogen Matthews with publication dates.
The iMonsters series by Rebecca Cantrell retells classic horror stories through the format of smartphone screens, texts, and digital communication.
Impact is a three-book zombie fiction series by Craig Halloran featuring a zombie day care, rehabilitation center, and full-scale warfare.
The Imperfect Hearts series by Alexandra Silva features contemporary romance novels about flawed characters navigating love and life.
The Imperfect Lords series by Bronwen Evans is a three-book series running from 2017 to 2019, starting with Addicted to the Duke.
Imperfect Love is a two-book contemporary romance series by Kim Karr, consisting of The Thing about Love and Come A Little Closer, both published in 2018. The series explores the complications and unexpected turns that come with falling for someone at the wrong time or in the wrong circumstances.
The Imperia series by Gena Showalter is an early paranormal romance series featuring warriors and slaves in a supernatural kingdom.
Imperia Encanto is a standalone fantasy story by Kristine Kathryn Rusch published in 2024.
The complete Imperiled Young Widows series by Melanie Dickerson in reading order. Historical mystery and romance featuring young widows in danger.
The complete reading order for the Imperium series by Jody Lynn Nye, following Lord Thomas Kinago through a far-future galactic empire.
Imperium Descent is a science fiction duology by Christopher Hopper published in 2022.
Complete list of all Imperium of Terra books in reading order by Evan Currie, a space opera set 400 years in the future.
The Impossible series by Nancy Werlin is a young adult fantasy trilogy inspired by the folk song 'Scarborough Fair,' following young women who must break an ancient family curse.
The complete Impossible Balfours series by Gemma Blackwood in order, a five-book Regency romance series about the unruly Balfour family and their romantic entanglements.
The Impossible Universe Trilogy is a romance series by Giana Darling exploring cosmic themes of fate and desire.
Imposter For Christmas is a holiday western romance series featuring mail-order brides with hidden identities during the Christmas season.
Imposter For Christmas is a nine-book holiday western romance series by Patricia PacJac Carroll published in 2021.
Imposter For Christmas is a nine-book western romance series by Cheryl Wright following mail-order brides who arrive under false pretenses at Christmastime.
The Imposter For Christmas series by Margaret Tanner features nine Western romance novels about women who arrive under false pretenses during the holiday season.
The complete reading order for the Imposter For Christmas series by Elissa Strati, nine mail-order bride romance novels about women hiding their true identities during the holiday season.
Imposter For Christmas is a nine-book Christian historical Western romance series by Lisa M. Prysock following mail-order brides — all named after their orders — who arrive in the West under unexpected circumstances. All nine books were published in 2021.
The Impostors series by Scott Westerfeld is a four-book series running from 2018 to 2022, starting with Impostors.
The Improbable Meet-Cute series by Ashley Poston is a six-book romance series published in 2024.
Reading order for Jasmine Guillory's Improbable Meet-Cute series, six romance novellas published in 2024, each built around an unlikely first encounter.
The Improbable Meet-Cute: Second Chances series by Catherine Cowles features six 2026 romantic comedy novels.
The Improbable Meet-Cute: Second Chances is a 2026 multi-author romance series featuring six novellas about second-chance love stories, with contributions from Julie Soto and other romance authors.
The Improbable Meet-Cute: Second Chances is a multi-author romance series centered on second-chance love stories, with contributions from Trilina Pucci and other romance authors.
The Improper Ladies series by Maggi Andersen follows Regency heroines who break social conventions in pursuit of love.
The Improper Lords series by Maggi Andersen features Regency aristocrats whose unconventional behavior leads to unexpected romance.
Reading order for Shona Husk's In a Bottle series, a paranormal romance featuring genies who can only find freedom through love.
In a Fairy Tale World is a seven-book romance series from 2004 to 2010, featuring fairy-tale-inspired love stories from the Silhouette Romance line.
Books from the In a Fairy Tale World multi-author Harlequin romance series.
The In Bed With The Boss multi-author series features nineteen Harlequin romances built around forbidden boss-employee attractions.
The In Bed With The Boss series features Harlequin workplace romances including titles by Julie Cohen and other authors.
The In Bed With The Boss series features sixteen Harlequin romances about workplace relationships between bosses and employees, published between 2006 and 2011.
In Darkness by Alice Winters is a five-book MM paranormal romance series published between 2018 and 2025.
The complete reading order for the In Death series by J.D. Robb (Nora Roberts), a futuristic police procedural and romance series spanning 81 books and featuring NYPSD Lieutenant Eve Dallas in mid-21st century New York City.
The complete reading order for the In Death Collections by J.D. Robb, featuring two omnibus volumes that bundle previously published In Death novellas together.
The complete reading order for the In Death Short Stories and Novellas by J.D. Robb, featuring 12 shorter works set in the futuristic In Death universe with Lieutenant Eve Dallas.
The complete In Death Universe reading order with all 90 entries, including full-length novels, novellas, collections, and international translations of the futuristic crime series by J.D. Robb (Nora Roberts).
In From the Storms is a romance series by Janice Cole Hopkins. The three books were published in 2019.
In Heat is a two-book shifter romance series featuring alpha males driven by mating instinct during breeding season.
In Hell is a two-book extreme horror series by Matt Shaw featuring a journey into the afterlife's worst reaches, with both Voyage to Hell and Hell's Reveal published in 2017.
The In Her Shoes multi-author series features seventeen Harlequin romances about Cinderella-style transformations and rags-to-riches love stories.
In Her Shoes is a 17-book multi-author romance series from 2008 to 2012, featuring Cinderella-inspired heroines in Harlequin Romance stories.
Books from the In Her Shoes multi-author Harlequin romance series.
The In Hero Years series by Michael A. Stackpole is a nine-book series running from 2020 to 2020, starting with In Service Days.
The In His Sights series features six romantic suspense novels about protective heroes, all published in 2025.
In Lords We Trust books in order by Lisa Campell. Complete reading order for the In Lords We Trust series with publication dates.
In Love with a Tycoon is a two-book contemporary romance series by Tracey Livesay featuring Black professional women navigating attraction and power dynamics with wealthy men.
In Love With Her Boss is a ten-book Harlequin romance series by Rita Bradshaw featuring workplace romances between bosses and their employees, published between 2001 and 2006.
The In Luv Duet is a two-book contemporary romance co-written by Jay Crownover and Rebecca Yarros about a fake-dating scheme gone wrong.
The In Shady Grove series by Beth Andrews in reading order, a contemporary romance series set in a small Pennsylvania town.
The In The As The Light Dies World series by Boyd Craven Jr. is a 22-book series running from 2023 to 2026, starting with The New Republic Of Texas.
The complete reading order for Nora Roberts' In the Garden trilogy, set at a historic Tennessee estate with themes of romance, gardening, and a ghostly mystery.
The In the Garden series by Lenora Worth features six inspirational romances published between 2001 and 2005.
The In the Hands of the Potters series by Kristy Marie is a four-book series running from 2022 to 2023, starting with The Potter.
In the Mind by Alice Winters is a two-book MM romance series published in 2019.
The In The October Fall World series by Boyd Craven Jr. is a 82-book series running from 2022 to 2025, starting with October Fall.
The complete In the President's Service series in order by Ace Collins. This WWII espionage series spans 19 books published between 2013 and 2024, following secret agents working for the White House.
The In the Shadows Security series by Jeanne St. James follows private security operatives in the Guts & Glory world as they protect clients and find unexpected love.
The In the Stars Romance series by Cynthia Sax is a science fiction romance series featuring alien and cyborg heroes, published primarily in 2018.
The In the Stars Romance series by Celia Kyle is a fifteen-book series running from 2018 to 2020, starting with The Purple Alien Prince's Pregnant Captive.
The In the Stars Romance series by Ruby Dixon features standalone sci-fi romances with alien heroes, spanning seven books published between 2018 and 2020.
In These Darkened... is a four-book extreme horror series by Matt Shaw published in 2023, moving through darkened waters, woods, shadows, and minds.
In Time is an eight-book time-travel mystery series by Susan Reiss, following a protagonist who travels through history to solve crimes and uncover lost truths.
In Trouble is a small-town sports romance series by Maya Alden, starting with Tee'd Up For Trouble in 2025.
The In Vino Veritas series by Garrett Leigh features six MM romances set in the world of wine country and vineyard life.
In With the Pack is a six-book omegaverse romance series by Hannah Haze about an omega drawn into life with a pack of alphas.
The In Your Arms series by Grace Meyers is a six-part romance following characters through a story called Whispers in the Wind.
The Inappropriate Bachelors is a seven-book contemporary romance series by J.S. Cooper featuring fun, flirty stories with long comedic titles, published between 2020 and 2021.
The Inari's Children series by David A. Tatum features The Kitsune Stratagem, a fantasy novel drawing on Japanese fox spirit mythology. Published in 2014.
The Inconvenient Trilogy by Audrey Harrison is a three-book Regency romance series about inconvenient marriages that turn into love matches.