This is a great starting guide if you are interested in starting signing with your babies, and even your toddlers! We have helped a short tempered little nine month old turn into a calm, almost tantrum free, 15 month old. The time and book investment was worth it. We started with this simple, purse sized, carry around book to see if it was for us. Once he understood "milk" and "eat" we were in it to win it and didn't stop (haven't yet either!!!). A good book to gauge you and your child's interest! 5 Stars!