Being a parent of a child with autism, finding the right book is always a challenge. At the moment my son enjoys sound books, and this musical playback has been giving him lots of sensory stimulation. The colours within the book are bright, but nicely coordinated so there isn't too much for him to become overstimulated.The sound quality is sharp and easily recognisable, but it's not loud enough to cause my son any distress which is great. Some books are so loud he covers his ears and pushes away, but this one was an instant hit.It's a nice size, can easily fit into his backpack so he can read it at school and at his grandparents.We both look forward to more sound books from the creators of this one to be available soon hopefully, as uniformity is a big part of my son's autism so he would love a nice pile of them.