Depending on your learning or assessment, you'll need different types of information throughout your learning journey. Knowing the right type, and how to find it, will be key to your success.
Learn about the different types of resources you can use to search for information. This helps you understand which resources will be the most appropriate to use when you are searching for information for your assignments.
For more information about evaluating sources try this link to Berkeley Library at the University of California
What is peer review?
Peer review is part of the editorial process an article goes through before it is published in a peer-reviewed journal. When you need a peer-reviewed article for a paper, what you are really looking for is an article published in a peer-reviewed journal.
Once an article is submitted to a peer-reviewed journal, the journal editors send that article to "peers" or scholars in the field to evaluate the article. These scholars review the methodology and conclusions of the article, looking for bias and other flaws. They may reject the article, in which case the author may have the opportunity to re-write it, or they can accept the article. In this case, the article then goes on to final editing and publication.
Please be aware, just because a journal is peer reviewed does not mean everything in that journal is peer reviewed. Each issue of a journal may have letters to the editor, opinion pieces, or book reviews; these materials are not peer reviewed.