Welcome Martha - Sorry I can't recommend any particular book for your parents - It is so frustrating trying to help a loved one that is addicted. I have an addicted daughter and recently had to step back from the situation - she is 40 and I also thought she was recovering but knew she needed more support than I could give her but she thought she could do it all on her own. Hope you find the support you need - you have found good people here at SR - someone will help soon. (((HUGS)))