Atla Religion Database with AtlaSerials PLUS This link opens in a new windowThe ATLA Religion Database is an essential tool for the study of religion. It is the premier index to journal articles, book reviews, and collections of essays in all fields of religion. Journals representing all the major religious faiths, major denominations, and numerous language groups are included. ATLA’s indexing of multi-author works, such as Festschriften and conference proceedings, is unique among religion databases. Unlike indexes that catalog books of essays as a single entry, ATLA indexes each individual essay in such works.