Mariona Tolosa Sisteré was born in Barcelona in 1983. As a child, she drew everyday scenes that happened around her, paying special attention to human relationships. She studied illustration in Barcelona at "l'Escola de la Dona" where she developed his own style using acrylic, pencil, collage and digital techniques. Since then, she has worked on a range of projects including books, albums, articles, animations, graphics and textile illustration.