Talking about graffiti it reminded me when taking a walk in a city where I was still in college. A wall beside pavement or on flyover was full of colorful painting objects resulted from scratching paintbrush. It was looking so nice with spontaneous action and creating something to look at.
When we were walking in big city we often viewed this art painted on the wall as if it were giving a message or just expressing the painter`s imagination and feeling. Having a theme or not this graffiti seemingly created pro and contradiction for some people. On the other side this street art of graffiti has a valuable art to give a messages or something useful for anyone looking at it.
Based upon that phenomena graffiti has been created not only on the wall but also has been in photoshop in form of brushes. One of that masterpiece is Graffiti Letters Photoshop Brushes Volume 1.