The resources on this website were an absolute lifesaver for me
The Road Less Traveled by M Scott Peck
Barbara Grizutti Harrison's online article regarding her experience leaving the WTS
My college textbooks and lectures
"Controlling People: How to Recognize, Understand, and Deal with People Who Try to Control You" by Patricia Evans. It has some chapters dealing with controlling groups. I think she does a good job explaining about how people with a need to control replace another person's authentic self with the controller's fantasy version of that person. All of the articles in the WT about people giving up their artistic hobbies, etc. popped into mind when I read this.