- Save the white whale!, [text by Geronimo Stilton ; illustrations by Sara Copercini (pencils), Riccardo Sisti (ink) and Christian Aliprandi (color) ; translated by Lidia Tramontozzi]
- Stilton, Geronimo, Cavemice, 6
- The hunt for the secret papyrus, plus a bonus mini mystery and cheesy jokes, Geronimo Stilton ; translated by Lidia Morson Tramontozzi and Andrea Schaffer
- Mysterious eye of the dragon, Geronimo Stilton ; illustrations by Danilo Loizedda, Antonio Campo, Daria Cerchi, and Serena Gianoli ; translated by Andrea Schaffer
- Happy birthday, Geronimo!, Geronimo Stilton ; illustrations by Danilo Loizedda, Antonio Campo, and Daria Cerchi ; translated by Lidia Tramontozzi
- The temple of the ruby of fire, Geronimo Stilton ; [cover by Larry Keys ; illustrations by Johnny Stracchino and Mary Fontina ; English translation by Joan L. Giurdanella]
- Have a heart, Geronimo, Geronimo Stilton ; illustrations by Danilo Loizedda, Carolina Livio, Daria Cerchi, and Valeria Cairoli ; translated by Anna Pizzelli
- Fright night, [text by Geronimo Stilton ; illustrations by Ivan Bigarella and Daria Cerchi ; translated by Lidia Morson Tramontozzi]
- The underwater planet, Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Daniele Verzini (color) ; translated by Anna Pizzelli
- Hug a tree, Geronimo, Geronimo Stilton
- The super cup face-off, Geronimo Stilton ; illustrations by Danilo Loizedda, Antonio Campo, and Daria Cherchi ; translated by Emily Clement
- Geronimo Stilton, [text by Geronimo Stilton], Books 15 & 16
- The sewer rat stink, Geronimo Stilton ; with Tom Angleberger ; story by Elisabetta Dami ; color by Corey Barba
- Away in a star sled, Geronimo Stilton ; illustrations by Guiseppe Facciotto (design) and Daniele Verzini (color) ; translated by Anna Pizzelli
- I'm a scaredy-mouse!, Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Daniele Verzini (color) ; translated by Julia Heim
- The Hawaiian heist, Geronimo Stilton ; illustrations by Danilo Loizedda, Antonio Campo, and Daria Cerchi ; translated by Anna Pizzelli
- Welcome to Moldy Manor, Geronimo Stilton ; illustrations by Carolina Livio (design), Riccardo Sisti (ink), and Valentina Grassini (color) ; translated by Andrea Schaffer
- Bollywood burglary, Geronimo Stilton ; illustrations by Danilo Loizedda (design) and Daria Cerchi (color) ; translated by Lidia Morson Tramontozzi
- Lost in time, the fourth journey through time, Geronimo Stilton ; illustrations by Danilo Barozzi, Silvia Bigolin, and Danilo Loizedda (design), Christian Aliprandi (color), and Piemme's archives ; translated by Julia Heim
- The cheese experiment, Geronimo Stilton ; illustrations by Andrea De Negri (design) and Valentine Grassini (color) ; translated by Lidia Morson Tramontozzi
- Cavemice, text by Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Daniele Verzini (color) ; graphics by Marta Lorini ; translated by Emily Clement, 1
- Time warp, the seventh journey through time, Geronimo Stilton
- Sea monster surprise!, Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Alessandro Costa (color) ; translated by Andrea Schaffer
- The mystery in Venice, Geronimo Stilton
- Paws off, cheddarface, Geronimo Stilton
- Geronimo Stilton, the graphic novel, text by Geronimo Stilton ; story by Elisabetta Dami ; illustrations by Tom Angleberger ; translated by Emily Clement ; color by Corey Barba ; lettering by Kristin Kemper
- Valley of the giant skeletons, Geronimo Stilton ; [illustrations by Claudio Cernuschi and Christian Aliprandi]
- Stilton, Geronimo, Kingdom of Fantasy, 13
- You're mine, captain!, Geronimo Stilton
- Stilton, Geronimo, Cavemice
- Cyber-thief showdown, Geronimo Stilton ; illustrations by Giuseppe Ferrario (design), Roberta Cianchi (pencils) ; translated by Anna Pizzelli
- Stilton, Geronimo, Geronimo Stilton, the graphic novel, 4
- The great mouse race, [text by] Geronimo Stilton ; [translated by Julia Heim ; illustrations by Giuseppe Facciotto and Daniele Verzini]
- The fast and the frozen, Geronimo Stilton ; illustrations by Giuseppe Facciotto (design) and Daniele Verzini (color) ; translated by Julia Heim
- The phantom of the theater, Geronimo Stilton ; illustrations by Ivan Bigarealla, Antonio Campro and Daria Cerchi ; translated by Anna Pizzelli
- The secret of the crystal fairies, Geronimo Stilton ; [text by] Thea Stilton ; [translated by Anna Pizzelli]
- The missing movie, Geronimo Stilton
- Stilton, Geronimo, Cavemice, 07
- Mouse overboard!, Geronimo Stilton ; illustrations by Danilo Loizedda (design) and Christian Aliprandi (color) ; translated by Lidia Morson Tramontozzi
- Famouse fjord race, Geronimo Stilton ; illustrations by Giuseppe Facciotto and Alessandro Costa ; translated by Julia Heim
- Geronimo's valentine, Geronimo Stilton ; [illustrations by Giuseppe Ferrario]
- Thea Stilton and the treasure seekers, Geronimo Stilton ; [text by Thea Stilton ; translated by Julia Heim]
- The great rat rally, Geronimo Silton with Tom Angleberger ; story by Elisabetta Dami ; color by Corey Barba ; translated by Emily Clement
- Red pizzas for a blue count, Geronimo Stilton ; [translated by Edizioni Piemme]
- Stay strong, Geronimo!, Geronimo Stilton ; illustrations by Giuseppe Facciotto (pencils) and Alessandro Costa (ink and color) ; translated by Emily Clement
- Stilton, Geronimo, Micekings, 4
- The secret of Cacklefur Castle, Geronimo Stilton ; [illustrations, Larry Keys, Blasco Tabasco, and Toffina Sakkarina ; English translation by Edizioni Piemme S.p.A.]
- Slime for dinner, Geronimo Stilton with Tom Angleberger ; story by Elisabetta Dami ; color by Corey Barber ; story by Elisabetta Dami ; translated by Emily Clement ; lettering by Kristin Kemper
- The galactic goal, text by Geronimo Stilton ; illustrations by Giuseppe Facciotto and Daniele Verzini ; translated by Julia Heim
- The battle for Crystal Castle, Geronimo Stilton's thirteenth adventure in the Kingdom of Fantasy, Geronimo Stilton ; cover by Danilo Barozzi [and 2 others] ; illustrations by Silvia Bigolin [and 4 others] ; translated by Julia Heim