Marisa López Soria is a widely recognised and experienced writer of children's and young adult literature. She was born in Albacete but has lived most of her life in Cartagena and Murcia.

Marisa Peña was born in Madrid in 1969. With a degree in Hispanic Philology from the Complutense University of Madrid, she teaches at IES Ítaca. She has written for the digital magazine Tiempos Modernos, for Plumas hispanoamericanas, and for the blog Memoria pública del diario Público.

Marisol Sales Giménez was born in Valencia on the 18th of August 2000. She lives in Alfafar (Valencia), although she considers herself as coming from Antella and Sumacàrcer. She was in the first year of her high school diploma when she wrote this book.

Marta (Zaragoza,1994) didn't want to learn to read because she thought that her sister would stop telling her stories. But Marta did learn, luckily for her and the bookshops of her native city.

Marta Barrio García-Agulló (New Haven, 1986) is an editor. She is a graduate of Spanish Languages and of Oriental Studies from the Autónoma University, Madrid. She took a masters in Editing at Salamanca-Santillana University.

Since 2002 this author has illustrated for several publishers, advertising agencies, design studios, and communication services. "Since I was very small I already loved submerging myself among the drawings on the pages of stories and go travelling by doodling across the page." 

The author was born in Badalona, Barcelona. For over 20 years she has worked in public libraries and currently she works in digital publishing. She has also been a story-teller and works as an announcer for the collective EnVeuAlta.

Marta Gómez (Valladolid, 1967) has a degree in Hispanic Philology from the University of Valladolid. She has worked as a language and literature teacher in Valladolid, Melilla and Scotland.