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 "Bombing" in the graffiti world refers to the act of vandalising  property with one's signature or logo. "Bombing"-type graffiti can  manifest itself in many different forms, but always happens illegally.
            
           
          
           
             
               Tag: The simplest and earliest form of modern graffiti, a tag  consists of a stylised signature - commonly executed with spray-paint  or markers. 
           
             
               Throw-up: The throw-up involves the execution of one's name in  large bubble-like letters. Throw-up design emphasises fast and easy  painting. 
           
             
               Block letters: Different names apply to this style of lettering  according to where one comes from, but in general it refers to large,  angular, easily-read characters 
           
             
               Piece: Commonly refers to the complicated letter styles  characteristic of graffiti art. Bombers execute pieces illegally, and  usually with the least amount of decorum possible. 
           
             
               Rollers: Graffiti done with paint rollers. Usually very large.  Often done by leaning over the edge of a building and painting one's  name, logo, etc. 
           
             
               Other: A lot of bombers have come to use logos, characters or other types of designs to represent themselves. |