I have not professionally vetted this book yet but it’s on my list to read and has been highly recommended as a book for a comprehensive understanding of abuse.
“In this groundbreaking bestseller, Lundy Bancroft—a counselor who specializes in working with abusive men—uses his knowledge about how abusers think to help women recognize when they are being controlled or devalued and to find ways to get free of an abusive relationship.” ~ Amazon