Classification
005 - Computer programming, programs & data
7,626
006 - Special computer methods
2,889
400 - Language
2,206
500 - Natural sciences & mathematics
2,115
004 - Data processing & computer science
1,729
420 - English & Old English
1,355
000 - Computer science, information & general works
1,244
410 - Linguistics
974
331 - Labor economics
804
620 - Engineering & allied operations
804
745 - Decorative arts
801
470 - Italic languages; Latin
746
830 - Literatures of Germanic languages
671
658 - General management
657
418 - Standard usage & applied linguistics
482
700 - The arts; fine & decorative arts
471
900 - History & geography
468
808 - Rhetoric & collections of literature
377
440 - Romance languages; French
366
330 - Economics
364
384 - Communications; telecommunication
303
370 - Education
276
401 - Philosophy & theory
269
519 - Probabilities & applied mathematics
262
025 - Library operations
231
490 - Other languages
231
480 - Hellenic languages; classical Greek
229
800 - Literature & rhetoric
219
100 - Philosophy & psychology
202
320 - Political science
202
306 - Culture & institutions
194
380 - Commerce, communications & transportation
182
510 - Mathematics
167
302 - Social interaction
164
794 - Indoor games of skill
162
600 - Technology
150
621 - Applied physics
150
415 - Grammar
148
340 - Law
146
414 - Phonology & phonetics
139
430 - Germanic languages; German
131
491 - East Indo-European & Celtic languages
124
511 - General principles of mathematics
117
300 - Social sciences
115
149 - Other philosophical systems
113
140 - Specific philosophical schools
112
610 - Medicine & health
107
374 - Adult education
100
333 - Economics of land & energy
99
153 - Mental processes & intelligence
86
more ...