Graffiti and unauthorised signage

Graffiti (singular graffiti, or graffito only in graffiti archeology) is writing or drawings made on a wall or other surface, usually without permission and within public view. Graffiti ranges from simple written "monikers" to elaborate wall paintings, and has existed since ancient times, with examples dating back to ancient Egypt, ancient Greece, and the Roman Empire.

thumb|320px|right|Parts of a stencil thumb|320px|Stenciled warning sign in Singapore thumb|Stencilled Gaelic type thumb|320px|Japanese Ise-katagami stencil for printing textiles Stencilling produces an image or pattern on a surface by applying pigment to a surface through an intermediate object, with designed holes in the intermediate object. The holes allow the pigment to reach only some parts of the surface creating the design. The stencil is both the resulting image or pattern and the intermediate object; the context in which stencil is used makes clear which meaning is intended. In practic

ACAB, an acronym for all cops are bastards, is a political slogan associated with those opposed to the police and commonly expressed as a catchphrase in graffiti or tattoos. It is sometimes expressed as 1312, with each digit representing the position of the corresponding letter in the English alphabet.

padlock attached to a public fixture as a symbol of eternal love

common marking and a meme from World War II

a wall in Prague, Czech Republic

type of graffiti or street art that employs colourful displays of knitted or crocheted yarn or fibre rather than paint or chalk

method of creating images on surfaces by removing dirt

type of street art

thumb|Warchalking symbols Warchalking is the drawing of symbols in public places to advertise an open Wi-Fi network. Inspired by hobo symbols, the warchalking marks were conceived by a group of friends in June 2002 and published by Matt Jones who designed the set of icons and produced a downloadable document containing them. Within days of Jones publishing a blog entry about warchalking, articles appeared in dozens of publications and stories appeared on several major television news programs around the world.

writing or art medium

messages of unknown origin found embedded in asphalt of streets

Pichação, sometimes misspelled as pixação (), is the name given to a type of Brazilian graffiti. It consists of tagging done in a distinctive, cryptic style, mainly on walls and vacant buildings. Many pichadores (pichação painters) compete to paint in high and inaccessible places, using such techniques as free climbing and abseiling to reach the locations. The main difference between graffiti and pichação is both the consenting nature and benevolent artistic expression of graffiti, whereas pichação is made as an act of vandalism without consent and to uglify a public space as a form of protest

monument located in Sofia, the capital of Bulgaria

drawing or light engraving made with a point on a hard support

a graffito in the form of the artist's signature

Wildstyle is a complicated and intricate form of graffiti, the most complex type of graffiti piece. Due to its complexity, wildstyle can be difficult to read for those unfamiliar with the form and process. It is considered the most difficult graffiti style to master. thumb | 220x124px | right|A semi-wildstyle using the word FASE thumb | 220x124px | right

visual art form using adhesive tape

a form of graffiti that makes use of stencils

graffiti symbol

The circle-A or anarchist A, written as Ⓐ, is a graphic and political symbol representing the anarchist movement and ideology. Seeking a symbol that could easily represent the entire movement, it was conceptualized in April 1964 by the Libertarian Youth group of Paris. It was made on the initiative of Tomás Ibáñez, and was graphically represented by René Darras. The symbol initially remained confidential in France for a few years before spreading to Italy, especially to Milan, in 1968. Starting in the early 1970s, the circle-A spread across Italy, France, and then throughout the world.

list of terms related to graffiti art

thumb|upright|Restroom graffiti, People's Cafe, San Francisco thumb|220px|right|Graffiti at Meilahti Yläaste. Helsinki, Finland, 2006 Latrinalia is a type of deliberately inscribed or etched marking made on latrines; that is, bathrooms or lavatory walls. It can take the form of art, drawings, or words, including poetry and personal reflections. Other types of latrinalia include political commentary and notes on love as well as derogatory (sharing low opinions) comments and pictures. Humor is also common, such as the phenomenon observed on some college campuses of writing puns about grout in th

military monument in Prague

Serbian slogan

thumb|Poster combo in streets of El Barrio del Carmen in Valencia, Spain

CHWDP or HWDP is a frequently used Polish acronym or initialism of the Polish phrase , literally meaning "(put a) dick up the police's ass." This anti-authoritarian and anti-police slogan, often written on walls in Poland, is used as a vulgar form of provocation against the police and authorities.

abrasive blasting technique using sodium bicarbonate

thumb|Tree carving in Bielinek (Bellinchen), [[Pomerania, immediately east of the Oder. It reads, in Russian, "March 1945, Death to the Germans."]] Arborglyphs, dendroglyphs, silvaglyphs, or modified cultural trees are carvings of shapes and symbols into the bark of living trees. Although most often referring to ancient cultural practices, the term also refers to modern tree-carving.

Street art on the Israeli West Bank barrier

Street art campaign by Shepard Fairey

form of graffiti

thumb|Calligraffiti at Port de Pêche de Sayada, February, 2017 Calligraffiti is an art form that combines calligraphy, typography, and graffiti. It can be classified as either abstract expressionism or abstract vandalism. It is defined as a visual art that integrates letters into compositions that attempt to communicate a broader message through writing that has been aesthetically altered to move beyond the literal meaning. Simply put, it is the conscious effort of making a word or group of words into a visual composition. As such it is meant to be both an aesthetic experience and provocative