- Dog Squad, Chris Grabenstein ; illustrations by Beth Hughes
- I even funnier, James Patterson and Chris Grabenstein
- Super puzzletastic mysteries, short stories for young sleuths from Mystery Writers of America
- I funny TV, a middle school story, James Patterson and Chris Grabenstein ; illustrated by Laura Park
- Shine!, J.J. & Chris Grabenstein ; illustrations by Leslie Mechanic
- Jacky Ha-Ha, my life is a joke, James Patterson and Chris Grabenstein ; illustrated by Kerascoët
- Laugh out loud, James Patterson and Chris Grabenstein ; illustrated by Jeff Ebbeler
- Escape from Mr. Lemoncello's library, Chris Grabenstein
- Scaredy Cat, James Patterson and Chris Grabenstein ; illustrated by John Herzog
- Laugh out loud, James Patterson and Chris Grabenstein ; [illustrations by Jeff Ebbeler]
- The smartest kid in the universe, Chris Grabenstein
- Mr. Lemoncello's all-star breakout game, Chris Grabenstein
- Mr. Lemoncello's library olympics, Chris Grabenstein
- Genius Camp, Chris Grabenstein
- Beach party surf monkey, Chris Grabenstein ; illustrated by Brooke Allen
- Jacky Ha-Ha, James Patterson and Chris Grabenstein ; adapted by Adam Rau and Betty C. Tang
- Mr. Lemoncello's very first game, Chris Grabenstein
- Mr. Lemoncello's Library Olympics, Chris Grabenstein
- Katt vs. Dogg, James Patterson and Chris Grabenstein ; illustrated by Anuki Lopez
- I totally funniest, a middle school story, James Patterson and Chris Grabenstein
- Cat crew, Chris Grabenstein ; illustrations by Beth Hughes
- Jacky Ha-Ha, James Patterson and Chris Grabenstein ; illustrated by Kerascoët
- No more naps!, a story for when you're wide-awake and definitely not tired, Chris Grabenstein ; pictures by Leo Espinosa
- Max Einstein, the genius experiment, James Patterson and Chris Grabenstein ; illustrated by Beverly Johnson
- Home sweet motel, Chris Grabenstein ; illustrated by Brooke Allen