- Song Lee and the hamster hunt, by Suzy Kline ; pictures by Frank Remkiewicz
- Stanley's store, William Bee
- Stanley the mailman, William Bee
- Lulu and the hamster in the night, Hilary McKay ; illustrated by Priscilla Lamont
- Spring according to Humphrey, Betty G. Birney
- One nosy pup, by Carol Wallace ; illustrated by Steve Björkman
- Hot Rod Hamster meets his match!, by Cynthia Lord ; cover illustration by Derek Anderson ; interior illustrations by Greg Paprocki
- Stanley the farmer, William Bee
- Hamster Princess, of mice and magic, by Ursula Vernon
- Super Turbo vs. the flying ninja squirrels, by Edgar Powers ; illustrated by Glass House Graphics
- Hot Rod Hamster and the Wacky Whatever Race, by Cynthia Lord ; cover illustration by Derek Anderson ; interior illustrations by Greg Paprocki
- Mysteries according to Humphrey, Betty G. Birney
- Pigsticks and Harold and the incredible journey, Alex Milway
- Captain Underpants and the big, bad battle of the Bionic Booger Boy, the revenge of the ridiculous Robo-Boogers : the seventh epic novel, by Dav Pilkey, Part 2
- Giant trouble, by Ursula Vernon
- Humphrey's mixed-up magic trick, Betty G. Birney ; illustrated by Priscilla Burris
- The misadventures of Sweetie Pie, Chris Van Allsburg
- Time traveling with a hamster, Ross Welford
- Super Turbo, written by Edgar Powers ; illustrated by Salvatore Costanza at Glass House Graphics, V.1
- Stanley's diner, by William Bee
- Hamster princess, Little Red Rodent Hood, by Ursula Vernon, 06
- Stanley's library, William Bee
- The world according to Humphrey, Betty G. Birney
- Humphrey's treasure hunt trouble, Betty G. Birney ; illustrated by Priscilla Burris
- Take your pet to the vet, adapted by Sara Miller ; based on the episode written by Ford Riley for the series created by Chris Nee ; illustrated by Character Building Studio and the Disney Storybook Art Team
- Life according to Og the Frog, Betty G. Birney
- Adventure according to Humphrey, Betty G. Birney
- Humphrey's pet show panic, Betty G. Birney ; illustrated by Priscilla Burris
- Summer according to Humphrey, Betty G. Birney
- Hot Rod Hamster and the haunted Halloween party!, by Cynthia Lord ; cover illustration by Derek Anderson ; interior illustrations by Greg Paprocki
- School days according to Humphrey, Betty G. Birney
- Trouble according to Humphrey, Betty G. Birney
- Hot Dog and Bob and the dangerously dizzy attack of the hypno hamsters, adventure #3, by L. Bob Rovetch ; illustrated by Dave Whamond
- Adventure according to Humphrey, Betty G. Birney
- Hamster in a handbasket, Ben M. Baglio ; illustrations by Shelagh McNichols ; cover illustration by Mary Ann Lasher
- Stanley the builder, William Bee
- A place to call home, Alexis Deacon ; illustrated by Viviane Schwarz
- Surprises according to Humphrey, Betty G. Birney
- Humphrey's school fair surprise, Betty G. Birney ; illustrated by Priscilla Burris
- Class pet surprise, created by Jeff Brown ; written by Kate Egan ; pictures by Nadja Sarell
- Ratpunzel, by Ursula Vernon
- Whiskerella, by Ursula Vernon
- Humphrey's playful puppy problem, Betty G. Birney ; illustrated by Priscilla Burris
- Spring according to Humphrey, Betty G. Birney
- Hot Rod Hamster, monster truck mania!, by Cynthia Lord ; pictures by Derek Anderson
- The underfoot, written by Ben Fisher and Emily S. Whitten ; illustrated by Michelle Nguyen ; color assistance by Adrian Ricker ; lettered by Thom Zahler ; world map by Eric Orchard ; H.A.P. Burrow map by Thom Zahler, Book 2
- Hot rod hamster!, by Cynthia Lord ; pictures by Derek Anderson
- Humphrey audio collection, Betty G. Birney, Books 8-11
- Humphrey's really wheely racing day, Betty G. Birney ; illustrated by Priscilla Burris
- Imagination according to Humphrey, Betty G. Birney