Circular letters are an older form of written communication. They are used to deliver messages among a group of people such as employees of a company or to management staff. Usually, circular letters will contain important information like company policy changes.
Circular letters may also be used to distribute information to a larger group, such as a community or college campus. They may be posted publicly in order to reach a larger audience. A flyer or leaflet is an example of a circular letter.Learn more about Writing