The NOT symbol is everywhere!  It is one of the few international symbols which is instantly recognized across all cultural and linguistic borders; This symbol quickly gets its message across.  It is displayed on thousands of items - on everything from hospital equipment to consumer products, from road signs to political statements. 

As a method of adding extra meaning to a statement the not symbol is unique: alone, by itself it possesses little meaning, but when supplemented with an overlapping word or graphic (usually displayed underneath the “circle slash”) an entirely new meaning is exposed. The many uses for this versatile symbol are amazing!