In political cartoons, cartoonists usually use several figures of speech to implicitly express his or her understanding and attitude towards political figures or events, such as metaphorical, symbolic, anthropomorphic, exaggerated, and humorous tactics. In this way can cartoonists put up their political criticism and provoke social thinking, therefore leading the direction of public opinion. Moreover, in the political field of English cartoons, the author often chooses to implicitly express his or her thinking because of its unique political background.