There are so many types of primary resources it is important to define your parameters by
- Discipline (e.g. art, history, physics, political science)
- Format (e.g. book, manuscript, map, photograph)
- Type of information you need (e.g. numerical data, images, polls, government reports, letters)
- Date range
On the next tab, Library Primary Resources, there are examples of terms you may search to find books with primary resource and links to archival collections at Northwestern's library.