My grandson (the oldest of three) has just been diagnosed with autism but we have known that he has some special needs for a while so I purchased the first four baby signing times a while ago. I just received this one in the mail and he already loves it. He has a vocabulary now and before we started at 2 1/2 he was not speaking at all. Now he signs and expects all of us to know what he is saying so the whole family is learning. Thanks so much Rachel and your entire group on your DVD. I also have the first four CDs that keep him engaged when we are in the car and the first four flash card sets and he sits on the floor and reads them like books. Your program gives me hope for my grandson. Sign me one happy Bema (grandma for those that don't speak toddlerese)