This is the first in a series of posts about the influence of tools on lettering in graffiti and typography. As in any art form, the tool an artist uses shapes the work itself. Some examples from typography include the serif, and typefaces that have contrast between thick and thin strokes, mimicing letters made with a brush or pen. In graffiti, the influence of the tool is probably most evident in tags, especially those made with broad tipped markers. In the next few posts of this series I will show and discuss some specific examples of these influences from both graffiti and typography.