Tiny Love's cute dual stage illustrations book stimulates vision and encourages tummy time. The Double Sided Book is a soft, light, easy to fold book that features two sides: one with intense visual stimulation and another with subtle stimulation. The book is apocopate for baby from day one, when their eyesight is still limited, easily attaching to the inside of the crib. As baby grows, the variety of textures and crinkly elements intrigue baby, making it the perfect tummy time toy.