Peek-a-boo - who's looking at you? Watch your friend turn into a friendly cat or a silly robot or even an alien! This highly interactive book features two die-cut holes for the eyes and can be held up against the reader's face like a mask, offering an exciting, interactive variation of the much-loved peek-a-boo game for the very young. One of the beloved 'Let's Play Games' series books by Hervé Tullet, which stimulate thought and imagination in young children.