Editorials, Op-Eds, and Letters to the Editor are all opinion pieces but differ in their authorship. Editorials are written by a member of the newspaper's editorial board and represent the publication's official stance on an issue. Op-Eds (derived from "opposite the editorial page") are written by outside contributors (experts, columnists, etc.) and express their individual opinions.
A Letter to the Editor is a form of communication where a reader expresses their views or opinions on a specific issue, often in response to a recent article or event, and is typically intended for publication in a newspaper or magazine. It's a way for readers to engage in public discussion or debates and share their perspective with a wider audience.