A matchbook is a small paperboard folder (known as a matchcover) enclosing a quantity of matches and having a coarse striking surface on the exterior.
The exterior of the matchcover is usually imprinted with a producer's logo, often with artistic decorations, or serves as an advertising/promotional medium for the undertaking by which it is sold or given away.
The ease of making matchcovers of different shapes also made them quite a popular cheap promotional item or anniversary souvenir.
Manufacturing of matchbooks peaked during the 1940s and 1950s, then steadily declined because of the availability of disposable lighters and various anti-smoking health campaigns.
Recently, matchbooks have begun to regain some of their popularity as a "retro" advertising item, particularly in high-end restaurants.