A secondary source is a source that analyzes or interprets a primary source. A primary source can be an original object or document such as diary or photograph, an eyewitness account, or raw data. Seconday sources can include:
If you have a research assignment that requires secondary sources, be sure to check with your professor to be certain that you are using the correct sources of information.
For additional information visit, http://ucmercedlibrary.info/rpt/knowledge_cycle_11