Genre
- Congresses 312 Treffer
- Biography 84 Treffer
- Juvenile literature 51 Treffer
- Handbooks, manuals, etc 49 Treffer
- Pictorial works 36 Treffer
- Anecdotes 23 Treffer
- Case studies 18 Treffer
- Scores 18 Treffer
- Early works to 1800 16 Treffer
- Guidebooks 16 Treffer
- Identification 16 Treffer
- Dictionaries 15 Treffer
- Vocal scores with piano 15 Treffer
- Statistics 14 Treffer
- Maps 7 Treffer
- Encyclopedias 6 Treffer
- Juvenile fiction 5 Treffer
- Catalogs 4 Treffer
- Excerpts 4 Treffer
- Exhibitions 4 Treffer
- Portraits 4 Treffer
- Terminology 4 Treffer
- Bibliography 3 Treffer
- Decision making 3 Treffer
- Directories 3 Treffer
- Laboratory manuals 3 Treffer
- Genealogy 2 Treffer
- Posters 2 Treffer
- Texts 2 Treffer
- Atlases 1 Treffer
- Caricatures and cartoons 1 Treffer
- Classification 1 Treffer
- Correspondence 1 Treffer
- Ctalogs 1 Treffer
- Glossaries, vocabularies, etc 1 Treffer
- History 1 Treffer
- Miscellanea 1 Treffer
- Patents 1 Treffer
- Pedigrees 1 Treffer
- Romans, nouvelles, etc. pour la jeunesse 1 Treffer
- Rules 1 Treffer
- Textbooks 1 Treffer
- Translations into English 1 Treffer