- Artifacts
- Audio recordings
- Data
- Diaries
- Internet communications (ex. email, listserv postings)
- Interviews
- Legal documents (ex. birth certificate, trial transcript)
- Letters
- Maps
- Newspaper articles written at the time
- Original research (ex. empirical article)
- Patents
- Photographs and images
- Proceedings of meetings, conferences and symposia
- Records of organizations, government agencies (e.g. annual report, government document)
- Speeches
- Video recordings
- Works of art, architecture, literature, and music (e.g., paintings, sculptures, musical scores, buildings, poems)
(Adapted from the University of Maryland's University Libraries', Research Using Primary Sources guide)