A pin-up model (known as a pin-up girl for a female and less commonly male pin-up for a male ) is a model whose mass -produced pictures see wide appeal as popular culture. Pin-ups are intended for informal display, i.e. meant to be "pinned-up" on a wall. Pin-up models may be glamour models, fashion models, or actors. These pictures are also sometimes known as cheesecake photos.
The term pin-up may refer to drawings, paintings, and other illustrations as well as photographs (see the list of pin-up artists). The term was first attested to in English in 1941; however, the practice is documented back at least to the 1890s. Pin-up images could be cut out of magazines or newspapers, or on a postcard or lithograph. Such pictures often appear on walls, desks, or calendars. Posters of pin-ups were mass -produced, and became popular from the mid 20th century.
