More Than Words, by Fern Sussman, $52.  A beautiful book and a fabulous resource for parents of young pre-verbal ASD children.

This book is part of a program called The Hanen Program (from Canada).  You can learn more about Hanen at http://www.hanen.org  More Than Words:  Helping Parents Promote Communication and Social Skills in Children with Autism Spectrum Disorder is a beautiful, easy, book to read and has lovely pen and ink drawings with clear captions.  It is filled with so many practical, common sense ideas.  I would highly recommend this book for parents who want to do more to encourage their ASD children but are having trouble figuring out how and where to start.  The Hanen program offers certification for Speech professionals; therefore, there may be a Hanen program seminar offered by certified Hanen people in your community.  

They have other programs including , It Takes Two To Talk, involving parents of children with language delays, Talkability for parents of verbal children on the autism spectrum, and another program for parents kids who are simply late talkers.

This book is $52 on the Hanen website.  Superduperinc.com also has this book for $55.  Amazon does not stock it in-house.