A new children's book titled Trésor d’hiver has been released, written by Gilles Baum and illustrated by Csil. The book features colorful, illustrated pages that encourage young readers to use their imagination by exploring interactions between animals and objects. Designed for children aged 2 and older, the story follows a pie dressed in blue that discovers a key resembling itself, beginning a journey through a blue sky. The book is part of a series that focuses on the four seasons, using contrasting visual styles—animals are drawn with soft, hairy textures, while their clothing features sharp, geometric shapes. The book's design invites young readers to find their own meanings and connections through recurring visual elements, allowing them to engage more deeply with the story. Published by La Joie de Lire as part of its "Petits cartonnés" collection, Trésor d’hiver is priced at 12,000 €. Gilles Baum, a former primary school teacher turned children's author, worked with illustrator Csil, who was born in 1977 and is known for creating a unique, poetic world that blends shapes and colors in unexpected ways. The book's narrative and visuals aim to spark creativity and curiosity in young readers, offering a gentle introduction to the themes of discovery and imagination. As part of the seasonal series, Trésor d’hiver continues the tradition of blending educational elements with artistic expression. The release of an excerpt from the book is planned for 6 November 2026, giving readers a sneak peek into the imaginative world of this new publication.