Posters are an informative, often decorative way to attract attention. It is a source of information, focused on a particular subject, posted in a public place as an advertisement. A poster needs to be attractive, to catch the eye of potential customers in passing. They are very effective in waiting rooms and public places where people gather eg. post office, arenas, train stations and so on.
Flyers also known as a leaflet is a single, standard-size 8”x11” page printed on one or both sides with an advertising message. They are a very good form of mass marketing on a small scale. For the local merchant, flyers offer good market coverage at low cost, with good flexibility.