Kristen Radtke’s book, in graphic novel format, is part sociology, part psychology, part history, part memoir. Loneliness is the unifying theme, but Radke approaches the subject from several different angles, including the history of the laugh track in sitcoms and Harry Harlow’s famous and disturbing experiments on monkeys (which echoed his disturbing personal life). All of the different parts of the book, including Radke’s memories of loneliness in her younger years, are thought-provoking and stimulating, and the accomplished artwork brings it all together.