Knock Knock is a high-contrast book for children from 6 months.
With its wallet-like opening, it allows for the creation of an interactive space for the child who has recently learned to sit on his or her own. Windows of various sizes and even a mirror, but above all red, yellow and blue silhouettes and figures, which take advantage of the high-contrast concept, recreate a unique creative space that encourages an excellent first approach to the book object.