Classification
128 - Humankind
15
153 - Mental processes & intelligence
14
415 - Grammar
13
121 - Epistemology
12
303 - Social processes
10
612 - Human physiology
10
332 - Financial economics
9
333 - Economics of land & energy
8
338 - Production
8
616 - Diseases
8
004 - Data processing & computer science
7
302 - Social interaction
7
363 - Other social problems & services
7
401 - Philosophy & theory
7
152 - Perception, movement, emotions & drives
5
170 - Ethics
5
005 - Computer programming, programs & data
4
006 - Special computer methods
4
126 - The self
4
155 - Differential & developmental psychology
4
658 - General management
4
307 - Communities
3
339 - Macroeconomics & related topics
3
620 - Engineering & allied operations
3
001 - Knowledge
2
003 - Systems
2
070 - News media, journalism & publishing
2
150 - Psychology
2
154 - Subconscious & altered states
2
501 - Philosophy & theory
2
509 - Historical, geographic & persons treatment
2
519 - Probabilities & applied mathematics
2
621 - Applied physics
2
701 - Philosophy of fine & decorative arts
2
745 - Decorative arts
2
786 - Keyboard & other instruments
2
794 - Indoor games of skill
2
020 - Library & information sciences
1
025 - Library operations
1
111 - Ontology
1
149 - Other philosophical systems
1
160 - Logic
1
171 - Ethical systems
1
179 - Other ethical norms
1
194 - Philosophy of France
1
306 - Culture & institutions
1
320 - Political science
1
323 - Civil & political rights
1
330 - Economics
1
331 - Labor economics
1
more ...