Description: This newly developed Montessori baby cardboard book series uses black, white, and red colors to stimulate the baby's ability to recognize shapes and features. This unique enlightenment book for children combines the science of neonatal visual development and Montessori education theory. According to the sensory characteristics for babies, before the age of one, the visual response of children for the first 12 months consist of three colors: black, white, and red. It is best to create a series of exquisite illustrations that cultivate image perception, define the appearance of things with black and white contrast, and add the red that most attracts the baby's attention to guide children's visual and mental development.