A Theology
Bible, Biblical studies
| A1 | Whole Bible. Texts. Works on whole Bible. Encyclopedias | |
| A3 | Old Testament : Texts and commentaries | |
| A4 | New Testament : Texts and commentaries | |
| A6 | Miscellaneous |
Religious history
| A11 | Histories of religions | |
| A12 | Bible history and archaeology | |
| A13 | Founding of Church | |
| A14 | Churches and religious bodies in England | |
| A14.1 | Early churches and religious bodies | |
| A14.2 | 16th century churches and religious bodies | |
| A14.3 | 17th century churches and religious bodies | |
| A14.4 | 18th century churches and religious bodies | |
| A14.5 | 19th century churches and religious bodies | |
| A16 | Monasticism and monastic orders | |
| A17 | Clerical biographies |
Christian theology
| A20 | General | |
| A21 | Fathers (to the end of the 5th century) | |
| A22 | Doctrinal theology | |
| A23 | Moral theology. Devotional books | |
| A24 | Sermons | |
| A25 | Liturgies. Hymnology | |
| A26 | Ecclesiology | |
| A27 | Miscellaneous | |
| A28 | Christology |
Comparative religion and non-Christian religions
| A30 | Comparative study of religions | |
| A31 | Judaism | |
| A32 | Oriental religions | |
| A34 | General mythology |