Behavior Speak is a pithy yet elegant introduction to the terminology of Applied Behavior Analysis. Written by four behavior analysts, all of whom have impeccable credentials, as well as long standing personal commitments to children with autism, this book fills several needs. It is a pragmatic attempt to make the specialized vocabulary of the field more accessible to a general audience. The practical yet droll writing style makes it a perfect resource for new teachers or students beginning the study of behavioral interventions. Parents too can benefit. Parents often say that when their child is first diagnosed with autism it feels a lot like stepping on to a moving train. This is the book to help you get up to speed quickly. The slightly offbeat humor never overshadows or waters down the material. I've given this book to teachers new to the field, behavioral therapists new to home ABA programs, other parents of children with autism and, increasingly, to older siblings of kids on the spectrum. It's helped my older son, who doesn't have autism, know what we're talking about around the home and has empowered him to use behavioral concepts to make sense of his (middle school) world as well. While a lone, humorless reviewer uses the pretext that "autism in not funny" to slam the book (and in a petty manner, the authors) most seasoned autism parents know that there are plenty of reasons to smile at our kids and our lives. The authors' use of humor signals their collective appreciation of the challenges and successes, the struggles and the joys of life with a child with autism. Life with autism may not always be easy, but it has many rewards for those who know where to find them. This book, by demystifying the language of behavior analysis, empowers readers to work effectively with children with autism and their teachers, and thus to all move forward together happily.