1
Q
000
A
Computer Science; Knowledge and Systems
2
Q
010
A
Bibliographies
3
Q
020
A
Library Science
4
Q
030
A
General Encyclopedias
5
Q
040
A
General Collected Essays
6
Q
050
A
General Periodicals
7
Q
060
A
General Organizations
8
Q
070
A
Journaling and Publishing
9
Q
080
A
Anthologies; Quotations
10
Q
090
A
Book Rarities
11
Q
100
A
Philosophy
12
Q
110
A
Metaphysics
13
Q
120
A
Philosophy of Humanity
14
Q
130
A
Parapsychology and occultism
15
Q
140
A
Philosophic Systems
16
Q
150
A
Psychology
17
Q
160
A
Logic
18
Q
170
A
Ethics
19
Q
180
A
Ancient Philosophers
20
Q
190
A
Modern Philosophers
21
Q
200
A
Religion
22
Q
210
A
Natural Theology
23
Q
220
A
Bible
24
Q
230
A
Christianity, Christian theology
25
240
Devotional; Practical
26
250
Homiletic; Pastoral; Parochial
27
260
Church; Institutions; Work
28
270
History of Christianity
29
280
Christian Churches and Sects
30
290
Ethic and Other Religions
31
300
Social Sciences
32
310
Statistics
33
320
Political science
34
330
Economics
35
340
Law
36
350
Administration
37
360
Associations; Institutions
38
370
Education
39
380
Commerce; Communication
40
390
Customs and folklore
41
400
Languages
42
410
Linguistics
43
420
English and Old English
44
430
German and related languages
45
440
French and related Romance languages
46
450
Italian, Dalmatian, Romanian, Rhaetian, Sardinian, Corsican
47
460
Spanish, Portuguese, Galician
48
470
Latin and related Italic languages
49
480
Classical Greek and related Hellenic languages
50
490
Other languages
51
500
General Science
52
510
Mathematics
53
520
Astronomy
54
530
Physics
55
540
Chemistry
56
550
Earth sciences and geology
57
560
Fossils and Prehistoric life
58
570
Life Sciences, Biology
59
580
Plants
60
590
Zoology
61
600
General Technology
62
610
Medicine and health
63
620
Engineering and allied operations
64
630
Agriculture and related technologies
65
640
Home and family management
66
650
Management and auxiliary services
67
660
Chemical Technology
68
670
Manufacturing
69
680
Manufacture of products for specific uses
70
690
Construction of buildings
71
700
Modified subdivisions of the arts
72
710
Area planning and landscape architecture
73
720
Architecture
74
730
Sculpture and related arts
75
740
Graphic arts and decorative arts
76
750
Painting
77
760
Printmaking and prints
78
770
Photography, computer art, cinematography, videography
79
780
Music
80
790
Recreational and performing arts
81
800
Literature
82
810
American literature
83
820
English literature
84
830
German literature
85
840
French literature
86
850
Italian literature
87
860
Spanish and Portuguese literature
88
870
Latin literature
89
880
Greek literature
90
890
Literature of other languages
91
900
History
92
910
Geography and Travel
93
920
Biography, genealogy, insignia
94
930
History of ancient world
95
940
European history
96
950
Asian history
97
960
African history
98
970
North American history
99
980
South American history
100
990
Oceania and elsewhere history
