The following are the general areas for various religious studies.
- BJ Religions. Mythology. Rationalism
- BM Judaism
- BP Islam. Bahaism. Theosophy, etc.
- BQ Buddhism
- BR Christianity
- BS The Bible
- BT Doctrinal Theology
- BV Practical Theology
- BX Christian Denominations
Call numbers for selected religions or religious divisions not listed above be found below:
- BL 1100-1295: Hinduism
- BL1300-1380: Jainism
- BL1830-1883: Confucianism
- BL1899-1942.85: Taoism
- BL2017-2018.7: Sikhism
- BX200-756: Orthodox Eastern Church
- BX800-4795: Catholic Church
- BX4800-9999: Protestantism