There are many forms of advertisement and promotion. For so many years now, buttons are used to promote a lot of things. They are used to promote causes, events, organizations or social groups, politics, religion and many more.

A round button may range from 1″ to 6″ diameter. Recently, button makers released different shapes like diamonds, stars, ovals, squares, rectangles, and triangles. The most common button designs may have a pin back, a magnet back or a combination of both. Newer designs may have bottle or can opener back.