Maria Isabel Sanchez Vegara, born in Barcelona, Spain, is a writer and creative director in constant search of new concepts for children's books and the author of the multimillion-copy bestselling Little People, BIG DREAMS series of picture books that explore the lives of outstanding people. Working for more than fifteen years for clients in top advertising agencies, her books combine creativity with learning, aiming to establish a new and fresh relationship between children and pop culture.

Cachetejack are Nuria Bellver and Raquel Fanjul, a Spanish freelance illustration duo with a nomadic lifestyle. Their illustration universe is full of colours, energy, humour and irony. The hand drawn work of Cachetejack takes a fresh and unique style working in a variety of mediums, including - but not limited to - books, magazines, newspapers, clothing, drawing, painting, walls and illustration. Cachetejack combines reality with a quirky point of view to create situations and environments closer to the viewer.