Scholarly articles are published in journals intended for audiences in specific academic disciplines.
Many, but not all, scholarly journals are peer-reviewed.
Prior to publication, peer-reviewed articles are submitted to experts in the field who offer feedback to the author. Because the reviewers specialize in the same scholarly area as the author, they are considered the author’s peers (hence “peer review”).
Not all content in a scholarly journal is peer-reviewed. Other content may include letters and opinion pieces, editorial essays, and reviews of books or other resources.