A flyer or flier, also called a circular, handbill or leaflet, is a form of paper advertisement intended for wide distribution and typically posted or distributed in a public place or through the mail. Flyers may be used by individuals, businesses, or organizations to: Advertise an event such as a music concert, nightclub appearance, festival, or political rally Promote a good or service, such as a restaurant or nightclub. Persuade or send a social, religious, or political message, as in evangelism or political campaign activities on behalf of a political party or candidate. Flyers have been used in armed conflict: for example, airborne leaflet propaganda has been a tactic of psychological warfare. Recruit members Like postcards, pamphlets and small posters, flyers are a low-cost form of mass marketing or communication. There are many different flyer formats. Some examples are: A4 (roughly letterhead size) A5 (roughly half letterhead size) DL (compliments slip size) A6 (postcard size) Common Sense was a pamphlet that was distributed proceeding the American Revolution Flyers are inexpensive to produce. Their widespread use intensified with the spread of desktop publishing systems. In recent years, the production of flyers through traditional printing services has been supplanted by Internet services; customers may send designs and receive final products by mail.