Subjects: State by State (sorted by popularity)
- Agriculture -- United States -- Periodicals 1906 downloads
- World War, 1914-1918 -- United States 1901 downloads
- Naturalists -- United States -- Biography 1874 downloads
- Antislavery movements -- United States -- History -- 19th century 1868 downloads
- Slavery -- United States -- Songs and music 1836 downloads
- Presidents -- United States 1832 downloads
- Lynching -- United States -- Statistics 1830 downloads
- United States -- Rural conditions -- Periodicals 1830 downloads
- United States -- Civilization 1800 downloads
- Southern States -- Social life and customs -- Fiction 1768 downloads
- Antislavery movements -- United States -- Songs and music 1700 downloads
- Educators -- United States -- Biography 1694 downloads
- Fugitive slaves -- United States -- Biography 1676 downloads
- Autographs -- United States -- Facsimiles 1658 downloads
- Dickens, Charles, 1812-1870 -- Travel -- United States 1657 downloads
- United States. Navy -- Juvenile fiction 1656 downloads
- Southern States -- Description and travel 1603 downloads
- Tales -- Southern States 1579 downloads
- Caricatures and cartoons -- United States 1536 downloads
- Statesmen -- Rome -- Biography -- Early works to 1800 1530 downloads
- Fairy tales -- United States 1527 downloads
- United States -- History -- Colonial period, ca. 1600-1775 1485 downloads
- United States -- Social life and customs -- 1865-1918 1477 downloads
- Statesmen -- Rome -- Correspondence 1476 downloads
- United States -- Politics and government -- 1829-1837 1445 downloads