Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Swapped! | 2017 | Katrina Kahler | Buy |
| 2 | The Truth | 2017 | Katrina Kahler | Buy |
| 3 | Consequences | 2017 | Katrina Kahler | Buy |
| 4 | Turmoil | 2017 | Katrina Kahler | Buy |
| 5 | The Connection | 2017 | Katrina Kahler | Buy |
| 6 | The Plan | 2017 | Katrina Kahler | Buy |
| 7 | Moving On | 2017 | Katrina Kahler | Buy |
| 8 | Connected | 2017 | Katrina Kahler | Buy |
| 9 | The Outcome | 2017 | Katrina Kahler | Buy |
| 10 | Unexpected | 2018 | Katrina Kahler | Buy |
| 11 | Camp Problems | 2018 | Katrina Kahler | Buy |
| 12 | Staying Strong | 2018 | Katrina Kahler | Buy |
| 13 | Envy | 2018 | Katrina Kahler | Buy |
| 14 | Mixed Emotions | 2018 | Katrina Kahler | Buy |
| 15 | Caught Out! | 2018 | Katrina Kahler | Buy |
| 16 | Changes | 2019 | Katrina Kahler | Buy |
| 17 | A New Dilemma | 2019 | Katrina Kahler | Buy |
| 18 | Unforeseen | 2019 | Katrina Kahler | Buy |
| 19 | Double Trouble | 2019 | Katrina Kahler | Buy |
| 20 | Harmony At Last | 2019 | Katrina Kahler | Buy |
| 21 | A Dream Come True | 2019 | Katrina Kahler | Buy |
The Twins series runs to twenty-one books published between 2017 and 2019, following twin siblings through school life, family drama, and the complications of growing up.
The long run lets Kahler develop the characters in depth, giving readers who stick with the series a sense of real growth.