Fold-out and stand-up board book—perfect for baby tummy time—and based on proven research.    Fold-out board concertina books, based on proven scientific research about how babies see. Did you know babies’ eyes can see high-contrast black-and-white from birth—and black, white, and primary colors from three months. Five spreads of exciting patterns and cute animals.   These books, which fold out and stand up, are perfect for shared reading. With its ten images in black, white, and primary colors, they are perfectly designed for the eyes of babies and offer a fun way for parents and babies to spend time together.   Five pages of exciting patterns and five pages of cute animals give every baby the opportunity to find the image that appeals to them most.