Street art have achieved much more than just vandalism on private or public property. Around the world many artists strives to send a message to the masses, make people smile or question and provide opinions on social, political or life issues. Latest from http://taschen.com/pages/en/catalogue/art/all/05719/facts.trespass_a_history_of_uncommissioned_urban_art.htm”>Taschen is the Trespass: A History of Uncommissioned Urban Art book. The title itself explains the nature of the work included between the front cover and back cover. 320 pages of full color pictures and texts took three years to compile and the works included in the book is vast and includes 150 artists from around the world such as Jean Tinguely, Spencer Tunick, Keith Haring, Os Gemeos, Jenny Holzer, Barry McGee, Gordon Matta-Clark, Shepard Fairey, Blu, Billboard Liberation Front, Guerilla Girls, Banksy and many many more. Currently available at all good book stores world wide.