The Catholicism Answer Book: The 300 Most Frequently Asked Questions," by Reverend John Trigilio Jr. and Reverend Kenneth D. Brighenti, addresses common questions about the Catholic faith. Some of the questions explored in the book include: What are the "lost" or "missing" books of the Bible? Why pray a rosary? What determines whether someone is named a saint? Why are priests celibate? Why can't Catholics divorce or remarry? What is excommunication? The book is described as an accessible guide to the teachings of the Catholic Church, suitable for those with a passing interest in Catholicism, new Catholics, or those seeking a deeper understanding of their faith.