Marcelo E. Mazzanti (Barcelona, ​​1966) was a voracious reader from a young age, and everyone told him he would become a writer. At sixteen, he began working as an advertising copywriter and spent nearly three decades working for some of the most important agencies in the sector. After that, he became a literary editor, translator, and has written for other authors. He has published several children's books, including the Adivinautas series for Vox (the publisher, not the political party), El club de la C.I.E.N.C.I.A. (La Galera), and Jessica Little (Duomo Ediciones).