In this brilliant study (his best-known and most controversial), he opposes the Marxist concept of dialectical materialism and its view that change takes place through "the struggle of opposites." Instead, he relates the rise of a capitalist economy to the Puritan determination to work out anxiety over salvation or damnation by performing good deeds — an effort that ultimately discouraged belief in predestination and encouraged capitalism. Weber's classic study has long been required reading in college and advanced high school social studies classrooms.

    Among those included are the woman who had blood tests done because she was convinced that "not wanting sex" was a sign of serious illness, and the man who grew up in an evangelical household and did everything "right," only to realize after marriage that his experience of sexuality had never been the same as that of others. Also represented are disabled aces, aces of color, non-gender-conforming aces questioning whether their asexuality is a reaction against stereotypes, and aces who don't want romantic relationships asking how our society can make room for them.