This book examines the constitutional and statutory protections related to free exercise of religion, including current Supreme Court interpretations, as well as judicial and legislative avoidance of defining the parameters of religious belief. It also discusses significant examples of existing religious exemptions in current law, including employment non-discrimination, health care, and public accommodations law. It analyses recent federal judicial decisions that have considered the religious freedom rights of commercial entities whose owners have religious objections to the contraceptive coverage requirement. The book then continues to discuss church and campaign activity; legal issues associated with religious exemptions to photo identification laws; and prayer and religious expression in public institutions.