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Publication Order of Just Books
| Just Tricking! | (1999) | Hardcover  Paperback  Kindle |
| Just Annoying! | (2001) | Hardcover  Paperback  Kindle |
| Just Kidding! | (2001) | Hardcover  Paperback  Kindle |
| Just Crazy! | (2001) | Hardcover  Paperback  Kindle |
| Just Stupid! | (2001) | Hardcover  Paperback  Kindle |
| Just Disgusting! | (2002) | Hardcover  Paperback  Kindle |
| Just Joking! | (2003) | Hardcover  Paperback  Kindle |
| Just Wacky! | (2004) | Hardcover  Paperback  Kindle |
| Just Shocking! | (2007) | Hardcover  Paperback  Kindle |
| Just Macbeth! | (2009) | Hardcover  Paperback  Kindle |
| JustDoomed! | (2012) | Hardcover  Paperback  Kindle |
Publication Order of Bum Books
| The Day My Butt Went Psycho! / The Day My Bum Went Psycho! | (2001) | Hardcover  Paperback  Kindle |
| Zombie Butts From Uranus! / Zombie Butts from Uranus! | (2003) | Hardcover  Paperback  Kindle |
| Butt Wars: The Final Conflict / Bumageddon | (2005) | Hardcover  Paperback  Kindle |
| What Buttosaur is That? / What Bumosaur is That? | (2007) | Hardcover  Paperback  Kindle |
Publication Order of Bad Book Books
| The Bad Book | (2004) | Hardcover  Paperback  Kindle |
| Killer Koalas from Outer Space | (2011) | Hardcover  Paperback  Kindle |
| The Very Bad Book | (2014) | Hardcover  Paperback  Kindle |
Publication Order of Schooling Around! Books
| Treasure Fever! | (2008) | Hardcover  Paperback  Kindle |
| Pencil of Doom! | (2008) | Hardcover  Paperback  Kindle |
| Mascot Madness! | (2009) | Hardcover  Paperback  Kindle |
| Robot Attack! / Robot Riot! | (2009) | Hardcover  Paperback  Kindle |
Publication Order of Treehouse Books
| The 13-Story Treehouse | (2013) | Hardcover  Paperback  Kindle |
| The 26-Story Treehouse | (2014) | Hardcover  Paperback  Kindle |
| The 39-Story Treehouse | (2015) | Hardcover  Paperback  Kindle |
| The 52-Story Treehouse | (2016) | Hardcover  Paperback  Kindle |
| The 65-Storey Treehouse | (2016) | Hardcover  Paperback  Kindle |
| The 78-Story Treehouse | (2016) | Hardcover  Paperback  Kindle |
| The 91-Story Treehouse | (2017) | Hardcover  Paperback  Kindle |
| Terry’s Dumb Dot Story | (2018) | Hardcover  Paperback  Kindle |
| The 104-Story Treehouse | (2018) | Hardcover  Paperback  Kindle |
| The 117-Story Treehouse | (2019) | Hardcover  Paperback  Kindle |
| The 130-Story Treehouse | (2020) | Hardcover  Paperback  Kindle |
| Ten Unlucky Pirates | (2021) | Hardcover  Paperback  Kindle |
| The 143-Storey Treehouse | (2021) | Hardcover  Paperback  Kindle |
Publication Order of Treehouse Companion Books
| The Treehouse Fun Book | (2016) | Hardcover  Paperback  Kindle |
| The Treehouse Fun Book 2 | (2017) | Hardcover  Paperback  Kindle |
| The Treehouse Joke Book | (2020) | Hardcover  Paperback  Kindle |
| The Treehouse Joke Book 2 | (2021) | Hardcover  Paperback  Kindle |
| Tales from the Treehouse: Too Silly to Be Told . . . Until NOW! | (2022) | Hardcover  Paperback  Kindle |
Publication Order of Standalone Novels
| The Cat on the Mat is Flat | (2007) | Hardcover  Paperback  Kindle |
| The Big Fat Cow That Goes Kapow | (2008) | Hardcover  Paperback  Kindle |
Publication Order of Short Story Collections
| Help! I’m Being Chased by a Giant Slug | (2009) | Hardcover  Paperback  Kindle |
| Wish You Weren’t Here! / Help! I’m Trapped in My Bestfriend’s Nose | (2009) | Hardcover  Paperback  Kindle |
| Help! My Parents Think I’m a Robot! | (2010) | Hardcover  Paperback  Kindle |
| Help! I’ve Swallowed a Spider | (2011) | Hardcover  Paperback  Kindle |
| Help! There’s a Cockroach in My Underpants | (2020) | Hardcover  Paperback  Kindle |
Publication Order of Chapter Books
| The Cat, the Rat, and the Baseball Bat | (2013) | Hardcover  Paperback  Kindle |
| Ed and Ted and Ted’s Dog Fred | (2013) | Hardcover  Paperback  Kindle |
Publication Order of Non-Fiction Books
| Andypedia | (2012) | Hardcover  Paperback  Kindle |
| What Body Part is That? | (2012) | Hardcover  Paperback  Kindle |
| Once Upon a Slime: 45 Fun Ways to Get Writing FAST | (2013) | Hardcover  Paperback  Kindle |
| Putting It Out There | (2016) | Hardcover  Paperback  Kindle |
Publication Order of Anthologies
| Trust Me! | (2008) | Hardcover  Paperback  Kindle |
| Twinkle Twinkle Little Bat | (2018) | Hardcover  Paperback  Kindle |