Sources that are from or near the time period you are studying.
We use these as evidence to guide our interpretation.
Examples: Letters, Photographs, Newspapers, Maps
Sources that offer interpretations of the past based on primary sources.
These will offer an argument about the past with citations to show how the author explored their interpretation.
Examples: Books, Journal Articles, some digital projects
Reading secondary sources on our topics can help us find primary sources.
Pull out certain names, events, dates, or places in your secondary reading that might help you learn more about an aspect of your topic.
Then, use primary sources to offer your own arguments about this topic and enter the scholarly conversation.
For more: https://www.historyskills.com/2019/03/22/what-s-the-difference-between-perspective-and-bias/
Some of these sources will have bias. This means that they are created with a particular agenda in mind. An easy way to spot bias is to understand who is creating it or to identify particularly emotional or extremely positive or negative language. Also knowing who created this source, where it was published, when/what is was responding to, and why it was created can help to uncover potential bias.
All sources have a perspective: we all see the world from particular perspectives, and the sources left behind reflect that. For this reason, it is important to understand the context of what you're reading so that you can understand the perspective of the person/institution/organization that created it:
who, what, when, where, and why.