Start with high-confidence religious reference books, then narrow by subgenre or adjacent topics.
The World's Religions
Huston Smith
The Qur'an
Jane McAuliffe
M.A.S. Abdel Haleem, Anonymous
Quality Research Papers
Nancy Jean Vyhmeister, Terry Dwain Robertson
World Religions
John Bowker
The Divine Library
Rufus C. Camphausen
Kabbalah Handbook
Gabriella Samuel
World Religions: a Beginner's Guide
Jill Carroll
