Primary sources are created by people or organizations directly involved in an issue or event. Primary sources are information before it has been analyzed by scholars, students, and others.
Some examples of primary sources:
Secondary sources analyze and interpret issues and events. Secondary sources, such as scholarly articles, are typically written by experts who study a topic but are not directly involved in events themselves. Also, secondary sources are usually produced some time after an event occurs and may well contain analysis of primary sources.
Some examples of secondary sources:
TIP: If you are looking at peer-reviewed articles, look at the abstract to verify if is a primary or secondary source! If the title mentions the words: review, it is likely to be secondary.