Baby Sign Language Made Easy: 101 Signs to Start Communicating with Your Child Now by Lane Rebelo, Start communicating early with the baby sign language book that makes it simple. Filled with 101 useful, everyday ASL signs, along with tips on which signs are best to start with, and how to teach them. Give your baby the tools they need to tell you what they're thinking. Paperback, 170 pages. Recommended for baby through 3 years old..