Hi Steve. You may want to visit our website, https://disabiityandabuse.org to find books, resources, lists of activities, etc. on abuse of people with I/DD. Feel free to contact me at nora@disability-abuse.com (we say, @ disability MINUS abuse dot com. We produce a weekly newsfeed on abuse & disability which you can see on our website (prior newsfeeds). We conduct a 2 day training program for therapists on how to effectively deliver therapy to trauma victims with I/DD.