They are usually printed on glossy paper, with coloured illustrations, and specialized advertisements. Articles are reviewed by the magazines's editorial board. The audience for trade journals is the special- interest reader. Scholarly journals Scholarly journals are usually published by universities or professional associations. They are most often plain in appearance, with few illustrations other than tables and charts.
Advertisements are rare.
The articles are often lengthy, and are written in a formal style by contributing authors. There are usually extensive bibliographies. The audience for scholarly journals is the academic researcher. Scholarly journals may be refereed or non-refereed. The term refereed indicates that manuscripts submitted for publication are examined, not only by the journal's editor, but by several subject experts, prior to being approved for publication.