Classification
000 - Computer science, information & general works
1,884
001 - Knowledge
211
003 - Systems
864
004 - Data processing & computer science
2,442
005 - Computer programming, programs & data
5,298
006 - Special computer methods
2,263
011 - Bibliographies
12
015 - Bibliographies of works from specific places
1
016 - Bibliographies of works on specific subjects
1
020 - Library & information sciences
16
021 - Library relationships
2
022 - Administration of physical plant
1
023 - Personnel management
2
025 - Library operations
289
026 - Libraries for specific subjects
2
027 - General libraries
3
028 - Reading & use of other information media
4
030 - General encyclopedic works
5
033 - Encyclopedias in other Germanic languages
6
036 - Encyclopedias in Spanish & Portuguese
25
040 - [Unassigned]
109
046 - [Unassigned]
6
051 - Serials in American English
8
053 - Serials in other Germanic languages
2
057 - Serials in Slavic languages
12
060 - General organizations & museum science
1
061 - Organizations in North America
51
062 - Organizations in British Isles; in England
7
065 - Organizations in Italy & adjacent islands
5
069 - Museum science
3
070 - News media, journalism & publishing
13
090 - Manuscripts & rare books
2
100 - Philosophy & psychology
144
105 - Serial publications
2
107 - Education, research & related topics
1
111 - Ontology
4
113 - Cosmology
2
120 - Epistemology, causation & humankind
9
128 - Humankind
1
140 - Specific philosophical schools
277
150 - Psychology
158
152 - Perception, movement, emotions & drives
24
153 - Mental processes & intelligence
423
155 - Differential & developmental psychology
62
158 - Applied psychology
785
160 - Logic
11
170 - Ethics
186
174 - Occupational ethics
149
177 - Ethics of social relations
1
179 - Other ethical norms
2
more ...