A sticker is a piece of paper or plastic with an adhesive backing that allows it to stick to surfaces. Stickers can come in various shapes, sizes, and designs, often featuring images, text, or patterns. They are commonly used for decoration, labeling, or promotional purposes. Stickers are popular among people of all ages and can be found on items like notebooks, laptops, and water bottles. They are also used in arts and crafts, allowing for creative expression. Some stickers are removable, while others are designed to be permanent, depending on their intended use.