This document discusses how political cartoons can provide useful insights into past attitudes and perspectives. It explains that cartoons use techniques like exaggeration, symbolism, labeling, analogy, and irony to convey persuasive messages. It then provides examples of how each technique is used, such as exaggerating physical characteristics to demean authority figures or using symbols to represent larger concepts. The document advocates analyzing cartoons by considering their origin, context, elements, message, purpose, point of view, and reliability.