Graffiti (strictly, as singular, "graffito," from the Italian — "graffiti" being the plural) are images or letters applied to publicly viewable surfaces such as walls or bridges. Graffiti has existed at least since the days of ancient civilizations such as Ancient Greece and the Roman Empire.
Graffiti has changed over time into what are known as "modern graffiti": the public defacing of a surface using spray paint, markers, or other materials. When graffiti painting is done without the property owner's consent, it can be considered vandalism, which is punishable by law in most countries.
Graffiti can be used to communicate social and political messages, and as a form of advertising. It is also considered a modern art form, and can be seen in galleries around the world.
Some of the most common styles of graffiti have their own names. A "tag" is the most basic writing of an artist's name in either spray paint or marker. A graffiti writer's tag is his or her personalized signature. "Tagging" is often the example given when opponents of graffiti refer to vandalism, as they use it to label all acts of graffiti writing. Another form is the "throw-up," also known as a "fill-in," which is normally painted very quickly with two or three colors, sacrificing aesthetics for speed. Throw-ups can also be outlined on a surface with one color. A "piece" is a more elaborate representation of the artist's name, incorporating more stylized "block" or "bubble" letters, using three or more colors. This of course is done at the expense of timeliness and increases the likelihood of the artist getting caught.
A more complex style is "wildstyle", a form of graffiti involving interlocking letters, arrows, and connecting points. These pieces are often harder to read by non-graffiti artists as the letters merge into one another in an often undecipherable manner. A "blockbuster" is a "fill-in" that intentionally takes up an entire wall, sometimes with the whole purpose of blocking other "taggers" from painting on the same wall. Some artists also use stickers as a quick way to "get-up". While its critics consider this as lazy and a form of cheating, others find that 5 to 10 minutes spent on a detailed sticker is in no way lazy, especially when used with other methods.
Sticker tags are commonly done on blank postage stickers, or really anything with an adhesive side to it. "Stencils" are made by drawing an image onto a piece of cardboard or tougher versions of paper, then cut with a razor blade. What is left is then just simply sprayed-over, and if done correctly, a perfect image is left. Many graffiti artists believe that doing blockbusters or even complex wildstyles are a waste of time. Doing wildstyle can take (depending on experience) 8 hours to 2 days. Another graffiti artist can go over that time consuming piece in a matter of minutes with a bubble fill-in that would look just as good as a wildstyle piece.
