A sticker is a type of label: a piece of printed paper or plastic with pressure sensitive adhesive on one side. They can be used for decoration, depending on the situation. They can come in many different shapes, sizes and colours and are put on things such as lunchboxes, in children's rooms, on paper, lockers, notebooks and so on. Some people collect and trade stickers with other collectors. Temporary name tags are usually stickers.
Stickers are very widely used when an object requires identification with a word or idea. Brand stickers may be attached to products to label these products as coming from a certain company. They may also be used to describe characteristics of the products that would not be obvious from simple examination.