As a touch-and-feel book, ABC and 123 is appropriate for babies between 0-12 months because it aligns developmentally with the ways in which babies learn language by hearing, seeing and using their hands. This touch-and-feel book contains simple text and colorful photos to teach the alphabet and numbers, two fundamental concepts children need to know. Print motivation, letter knowledge and vocabulary skills are promoted as the parent/caregiver describes what the child is seeing, feeling or doing.