Benedicte Mathieu is a journalist. She worked for the cultural, financial, sports and literature sections of the French newspaper Le Monde before going freelance.

Myrtille Rambion is also a journalist. She has been around the world several times and met many sporting champions. She has worked for Reuters and many other companies.

Illustrator Aurrelien Debat lives in Strasbourg. He studied at the School of Decorative Arts and has worked for newspaper and book publishers since then. As soon as the weather turns fine, he abandons his pencils and goes climbing or hiking.