A columnist is a person who writes for publication in a series, creating an article that usually offers commentary and opinions. Columns appear in newspapers, magazines and other publications, including blogs. They take the form of a short essay by a specific writer who offers a personal point of view. Columns are sometimes written by a composite or a team, appearing under a pseudonym, or (in effect) a brand name. Columnists typically write daily or weekly columns. Some columns are later collected and reprinted in book form. Source: Wikipedia (en)