Mamen Duch , the founder of Yogui Kids, has been a yoga teacher for children since 2008 - certified by Shari Vilchez-Blatt of Karma Kids Yoga in New York. She is also a yoga teacher for children with special needs, certified by Craig Hanauer after completing the Every Kid's Yoga training program.

Raul Nieto Guridi was born in Seville and studied painting at the Faculty of Fine Arts there. Since then, he has worked in practically all fields of graphics, printing, design, and advertising. From 1995 onwards, he has specialized in graphic arts and the multimedia industry. Since 2010, his work has mainly focused on illustrations in children's publishing and posters for cultural campaigns involving theatre, dance, and puppets, as well as book covers for La Joie de Lire. He gives workshops on illustration and creativity. He also collaborates with several NGOs.

His books have been translated into more than nine languages, and he has received several international illustration awards.