| B | Philosophy–General. |
| BC | Logic. |
| BD | Speculative Philosophy. |
| BF | Psychology. Parapsychology. Occultism. |
| BH | Aesthetics. |
| BJ | Ethics. Social Usages. Etiquette. |
| BL | Religions. Mythology. |
| BM | Judaism. |
| BP | Islam. Ba’Hai. Theosophy. |
| BQ | Buddhism. |
| BR | Christianity. |
| BS | Bible. |
| BT | Christianity: Doctrinal Theology. |
| BV | Christianity: Practical Theology. |
| BX | Christian Denominations. |