I love this book. It has 13 words/phrases including: milk, help me, all done, diaper, more, dog, cat, it hurts, mommy & daddy.
Each page has both a picture as well as a short easy-to-follow description of how to correctly use the sign. This definitely has the important words that I want my son to be able to communicate. Although, it would be nice to have please and thank you.
The pictures are great, though really, he is learning the signs best through using them in context. This is mostly just helpful to learn the words and reinforce them.