Graffiti art originated in the late 1960's, and it has been developing ever since. However, it is not readily accepted as being art like those works that are found in a gallery or a museum. It is not strictly denied the status of genuine art because of a lack of form or other base aesthetic elements. Most of the opposition to graffiti art is due to its location and bold, unexpected, and unconventional presentation, but its presentation and often illegal location does not necessarily disqualify it as art. In this paper, I elucidate how some forms of graffiti can be accepted as art. This type of graffiti is known as graffiti art, subway art, or spraycan art. The arguments of vandalism and unconventional presentation as negating the ability of some graffiti to be art is usurped by an explanation of those properties apparent in some forms of graffiti that do qualify it, aesthetically, as art. To show this, I provide a historical context of graffiti, and then I provide persuasive evidence that graffiti art is art.