The online CNS Stylebook on Religion is the, evergreen, go-to book for ANYONE, on all things Catholic, from abbey to zucchetto. It provides guidance on simple things, like capitalization, but also provides detailed information on things like Eastern churches, Vatican agencies, the Bible, religious orders and much more.
The stylebook defines religious terms for journalists, as well as other professionals who need to write with a clear usage of Catholic terminology.
Including more than 1,100 terms and updated regularly, it is a useful guide for writers, editors, and all who communicate about religion!