Articles are usually reports on scholarly research. Most illustrations are charts and graphs. Articles use jargon of the discipline. Authors are magazine staff members or freelance writers. Authors may mention sources, but rarely cite them formally in notes or bibliographies.
Individual issues contain numerous advertisements.
There is no peer review process. Articles are meant to inform and entertain. Illustrations are numerous and colorful. Once you have a citation, check the List of Online Titles to see if the article you need is online. Publication is sponsored by the Center for the Study of Group Processes at the University of Iowa which provides free access to its contents.