Sticker art (also known as sticker bombing, slap tagging, and sticker tagging) is a form of street art in which an image or message is publicly displayed using stickers. These stickers may promote a political agenda, comment on a policy or issue, or comprise an avantgarde art campaign. Sticker art is considered a subcategory of postmodern art. This form of street art allows graffiti tags to instantly be placed anywhere accessible, with a much lower risk of apprehension and less damage to the target surface than is possible with other types of street art. Many different types of stickers are used to create sticker art. Inexpensively-purchased and free stickers such as "hello my name is" name tags or USPS mailing labels are often used with hand-drawn art. Sticker artists can also easily design and print thousands of stickers at low cost using a commercial printing service or at home with a computer printer and self-adhesive labels.