Davide Calì began his career in 1994 as a cartoon writer for the Italian magazine Linus. He began writing children's books in 2000, and since then he has published over twenty books for children, including his previous book with Raphaelle Barbanegre: Snow White and the 77 Dwarfs.

Cali has won a 2006 Bologna Ragazzi Special Award, the Switzerland Enfantaisies Prize, the 2005 Baobob Prize, the Belgium Libbylit Award, and France's SNCF award. His books have been published in France, Italy, Austria, the United States and Canada, and translations of his books have been published in eighteen countries. Davide lives in Genoa, Italy.

Benjamin Chaud has illustrated more than seventy books, including the New York Times Notable Book The Bear's Song, A Funny Things Happened On The Way To School..., The Truth About My Unbelievable School..., Grown-Ups Never Do That, and I Didn't Do My Homework Because..., which has been translated into twenty-four languages. He lives in the French Alps.