See studies by D. Low (1953), O. Lancaster (1964); R. E. Shikes, The Indignant Eye (1969); J. Geipel (1972); M. Horn, ed., The World Encyclopedia of Cartoons (1980); A. Wood, Great Cartoonists and Their Art (1987); V. S. Navasky, The Art of Controversy: Political Cartoons and Their Enduring Power (2013).
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.