Featuring high-contrast art that is specially designed for a baby's visual development, this box set of three accordion-style board books will aid your baby's visual development during tummy time! Infants have limited capabilities with vision upon birth and respond well to high-contrast images, which is why this high-contrast book box set is perfect for their young and growing minds. The three accordion-style board books included in this set provide developmentally appropriate visual stimuli for your baby's visual development, while exposing them to life-like imagery that can grow with them and expand their vocabulary. Each watercolor painting was designed by Tabitha Paige, artist, speech pathologist, and author of the best-selling series Our Little Adventures. Each book in the set supports a different developmental stage: 0+ Months: Simple black-and-white art stimulates focus and tracking2+ Months: Complex black-and-white images strength visual acuity4+ Months: Colorful images paired with their sounds promote cognitive developmentThis box set is meant to be functional for your child's many different learning needs as well as versatile for any space. The unique accordion-style format is perfect for tummy time, allowing your child to unfold the pages and stare and play with them, either with you or on their own.