content: I received this book as a gift, and subsequently purchased for a friend. The advice is practical, and the book isn't preachy. My 15mo old routinely uses 10 basic signs (milk, eat, pain, sleep, etc.), and I think our lives are much better for it. Instead of crying or shouting, she can ask for what she wants. I can't compare to other books, because I haven't read any, but sign language has been a very positive thing for our family, and we were successful using the advice in this book.