I just added a new page to the site with a list of books on Spiritual Abuse and related topics. It is still a work in process as I would like to add links and pictures for all the books, but it is a great start. (https://restoringtheheart.wordpress.com/books-on-spiritual-abuse-and-related-topics/)
Please take a look when you have time and let me know if there are other resources to add. I hope you find a treasure or two on the list!