common four types of periodicals

• Journals - A written collection of articles describing the

  methods and results of new research.
• Bridge publications - designed to “bridge the gap”

  between academia and the applied world. Usually written

  by professors.
• Trade magazines - A collection of articles for those “in the biz,” about related professional topics, seldom directly reporting the methods and results of new research.
• Magazines - An unscientific collection of articles about a

  wide range of topics.