Who is the author to Geronimo Stilton?

Geronimo Stilton is written by a team of authors under the pen name Geronimo Stilton.

While the actual identity of the authors is kept secret, it is generally believed that the main author is Elisabetta Dami, an Italian writer. She is credited with creating the character and world of Geronimo Stilton and has written the majority of the books.

Other authors may contribute to the series, but their identities are not revealed. This secrecy adds to the mystery and intrigue surrounding the character.