Primary sources are materials that are eyewitness accounts or as close to the original source as possible.
What people say.
They are usually speeches, interviews and conversations, and they may be captured in videos, audio recordings, or transcribed into text.
Secondary sources are interpretations and analysis based on primary sources.
For example, an autobiography is a primary source while a biography is a secondary source.
Typical secondary sources include:
Often secondary and primary sources are relative concepts. Typical secondary sources may be primary sources depending on the research topic.