Walt Kelly's newspaper comic strip Pogo was a platform for Kelly to express political satire and commentary via a wildly entertaining, motley group of swamp critters. He tackled many of the sociopolitical issues of his day: the Red Scare, civil rights, the environment, consumerism. But the strip is also a joyous, poignant, beautifully drawn, and occasionally profound work of 20th-century popular culture. It is such an all-time classic it is hard to...