This book is a comprehensive examination of religious scrupulosity, with a focus on treatment. In part 1, the author describes basics about anxiety, OCD, and scrupulosity and how each is related and interconnected. Part 2 explores scrupulosity on a deeper level, including what researchers have learned about scrupulosity. In part 3, McClendon discusses treatment considerations and presents a gold-standard, evidence-based approach to treatment. The interventions described can serve as a stand-alone self-help treatment for scrupulosity or as an adjunct to working with a mental health professional.