Is a caption used in writing letter to an editor?

A caption is typically not used in writing a letter to the editor. A letter to the editor is a short, opinionated piece written by a reader to express their views on a topic of public interest. It is typically addressed to the editor of a newspaper or magazine and may be published in the letters section of the publication. A caption is a title or heading that is used to describe a photograph, illustration, or other visual element and is not typically used in the body of a letter.