Editorial is a piece of writing that shares an educated opinion on a current and sometimes controversial issue or topic. It often combines elements of other types of writing (critical or analytical), but it is unique in that it is written from an assumed knowledge base (the author has expertise on the subject).
The editorial should be clear and engaging to encourage discussion and reader response. It should also be respectful and avoid polemic language as this can polarize the audience. In addition, it should be relevant and provide opinions that are based on the field in which the journal is published and its readers. In the journal world an editorial may be a commentary on a recently published paper, a call for submissions on a specific subject, a review of a particular policy or development in the field, or a summary of an important event or meeting that the authors feel is pertinent to the readership of the journal.
Aside from being found in journals, editorial can also be found in magazines and newspapers. In newspapers, the editorial section is often called the Op Ed or Opinion Page. In the magazine world, editorial can be found in a number of different formats: a column in a newspaper or periodical, a public statement from an organization or individual, or a blog post. An editorial should always be well argued and supported with evidence from reliable sources. It is also a good idea to include opposing viewpoints, as this will help create a more balanced outlook on the subject.