BX - Christian Denominations 390,424
B - Philosophy 279,173
BP - Islam, Bahaism, Theosophy 191,504
BS - The Bible 187,722
BL - Religions, Mythology, Rationalism 181,053
BF - Psychology 172,974
BV - Practical Theology 165,447
BR - Christianity 138,174
BM - Judaism 135,842
BT - Doctrinal Theology 113,005
BQ - Buddhism 86,720
BJ - Ethics 61,015
BD - Speculative Philosophy 45,922
BH - Aesthetics 15,263
BC - Logic 11,986
N - Visual Arts 3
E - United States History 2
KF - United States 1
M - Music 1
S - General Agriculture 1
V - General Naval Science 1