Few things are as innocent as a weekly episode of Charles Shultz's Peanuts in the Sunday newspaper. Most often, the sole purpose of the artist is to cause the reader to smile, to momentarily allow melancholia to be replaced by laughter, to entertain. Shultz's work is part of a group of cartoons that be described as comic art. Another group, the social cartoon, is designed to amuse the reader, but also to provide commentary on some annoying or worrisome aspect of life. A third type of cartoon, however, is rarely innocent and usually deals with loftier issues than life's inconveniences. The political cartoon is a partisan, and often nationalistic, comment made by the artist. Through his or her work, the cartoonist seeks to "influence the view...