Genre
Electronic books
537
Internet resources
247
Handbooks, manuals, etc
61
Computer network resources
37
Amateurs' manuals
14
Case studies
7
Study guides
7
Outlines, syllabi, etc
6
Tables
6
Formulae
4
Problems, exercises, etc
4
Textbooks
4
Terminology
2
Charts, diagrams, etc
1
Classification
1
Popular works
1
Programming
1
Standards
1