Before being known for characters like Walter Mitty and Charlotte the literate spider, James Thurber and E.B. White collaborated on a send-up of late-1920s New Yorker preoccupations with sex, changing gender roles, psychoanalysis, and overthinking. Is Sex Necessary? may also be the first publication of Thurber’s distinctively simple drawings, which White says he included after fishing them out of the trash and inking them in. The book joins the public domain in 41 days. #PublicDomainDayCountdown