Classification
400 - Language
900 - History & geography
5
410 - Linguistics
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
200 - Religion
1
340 - Law
1
414 - Phonology & phonetics
1
600 - Technology
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
800 - Literature & rhetoric
1