Manuals:
User's Manuals, Installation Guides, Maintenance Manuals, Reference Manuals, etc.
Specifications:
Electrical Specifications, Physical Specifications, Design Specifications, Requirements Specifications, Functional Specifications, etc.
Reports:
Term Papers for Assignments, Solutions for Homework, Lab Reports, etc.
Papers:
Journal Papers, Conference Papers, Technical Reports, etc.
Bachelor Theses, Master Theses and Ph.D. Dissertations