Description A toddler sticker book developed by Nathan, a French educational publisher, and produced by Byeoldongbyeol. - Can such cute and lovely pictures really be made using just triangles and squares? As you place each sticker one by one, a beautiful picture comes together like magic. - Not too hard, not too boring! Designed for children ages 4 and up, this product is specially developed to help kids use their fine motor muscles appropriately and gradually build up their concentration span.