Hey jiltedjohn,
Thank you for recommending the book "Changing for Good". I promised to give you props for it, so here it is. Now I want to return the favor and make another awesome suggestion; the book is called "Treating pornography addiction The essential tools for recovery" by PhD Kevin B Skinner. This book deals with porn addiction, and it's constructed like a workbook, having exercises that one needs to do, and the best part is that it's based on the "Changing for good" book. It follows the steps outlined in the mentioned book.