Research shows that babies can communicate through sign language as early as ten months, long before they can communicate through speech. Studies have also shown that babies who have learned to sign have higher IQs and more extensive vocabulary. This book includes a DVD that will teach parents and babies to sign simple words. The book was created by child development experts and Emmy Award-winning producers and animators.
My wife and I were tired of my son just pointing and grunting or whining about what he wanted try picked up this book. He was able to communicate better what he wanted. We continued to use simple sign language for a daughter now also. A wonderful book for us to use. I have a youtube video showing my son using the book.