A poster is any piece of printed paper designed to be attached to a wall or vertical surface. Typically posters include both textual and graphic elements, although a poster may be either wholly graphical or wholly text. Posters are designed to be both eye-catching and informative. Posters may be used for many purposes. They are a frequent tool of advertisers (particularly of events, musicians and films), propagandists, protestors and other groups trying to communicate a message. Posters are also used for reproductions of artwork, particularly famous works, and are generally low-cost compared to original artwork.

Retro is a culturally outdated or aged style, trend, mode, or fashion, from the overall post-modern past, that has since that time become functionally or superficially the norm once again. The use of “retro” style iconography and imagery interjected into post-modern art, advertising, mass media, etc. It generally implies a vintage of at least 15 or 20 years. For example clothing from the 1980s or 1990s could be retro. The style now called “retro art” is a genre of pop art which was developed in the 1940s and 1950s in response to a need for bold, eye-catching graphics that were easy to reproduce on simple presses available at the time in major centres. Retro advertising art has experienced a resurgence in popularity since its style is distinctive from modern computer-generated styling. Contemporary artist Anne Taintor uses retro advertising art as the centerpiece for her ongoing commentary on the modern woman. Specific styling features include analog machine design, vintage television program etc.