Banksy is a well-known pseudo-anonymous British graffiti artist. His artworks are often-satirical pieces of art on topics such as politics, culture, and ethics. His street art combines graffiti writing with a distinctive stenciling technique.
What I find inspiring about Banksy is the way he's able to deliver a strong message in such a subtle way. Also his cleverness around some of his work is a breathe of fresh air. It really blurs the line between Graffiti Vandalism and Graffiti Art.
Take a look at some of Banksy's work with this slide show. Click on the image for larger view.