Posters convey information, often with eye-catching words and images. Examples are; educational posters, event posters, travel posters, fine-art posters, point of purchase posters.
Posters are meant to attract people to stop and look. They can encourage you to buy a product or service, they can entice you to attend an event, they can make you aware of a certain viewpoint.
Posters can be as small as an 8.5 x 11 sheet of paper attached to a telephone pole or as big as an advertisement for the latest Hollywood blockbuster outside a movie theatre.