The document discusses whether graffiti and street art should be considered art or vandalism. It provides examples of graffiti and street art that demonstrate whimsical, funny, clever uses of space, and political messages. The author argues that street art can have depth of meaning and layers of expression, though it is fleeting in nature. Examples are provided from artists like Banksy to illustrate different styles and the ability of street art to make boring spaces and messages more interesting.