When writing a paper or conducting academic research, you’ll come across many different types of sources, including periodical articles. Periodical articles can be comprised of news accounts, opinion, commentary, scholarly analysis, and/or reports of research findings. There are three main types of periodicals that you will encounter: scholarly/academic, trade, and popular (for the purposes of this class, we'll ignore popular periodicals. The chart below will help you identify which type of periodical your article comes from.
![Periodicals chart](//s3.amazonaws.com/libapps/accounts/64556/images/periodicals.jpg)
Text and chart adapted from the WSU University Libraries' How to Distinguish between types of Periodicals guide