| # | Book Title | Author | |
|---|---|---|---|
| 1 | Welcome to the Treehouse | Baltazar, Art | |
| 2 | Adventures in Awesomeness | Baltazar, Art | |
| 3 | Sidekickin' It | Baltazar, Art | |
| 4 | First Rule of Pet Club..., The | Baltazar, Art | |
| 5 | Field Trippin' | Baltazar, Art | |
| 6 | Treehouse and Beyond!, The | Baltazar, Art | |
| 7 | Growing Up Tiny! | Baltazar, Art | |
| 8 | Aw Yeah Titans! | Baltazar, Art |