Subject (Genre)
- Formulae, receipts, prescriptions194
- Biography170
- Names Lists165
- Dictionaries160
- Documentary films157
- Case studies145
- Documentary television programs132
- Bibliography129
- Presidential Communications and Messages120
- Manuscripts118
- Dissertations112
- Instructional films112
- methods110
- Advertisements Patent medicines104
- Lectures104
- Handbooks and manuals97
- Streaming videos95
- Academic dissertations90
- Statistics80
- Academic theses69