Since its first issue in 1945, COMMENTARY has published hundreds of articles about Jews and Judaism. As one would expect, they cover just about every important aspect of the topic. But there is a lacuna, and not one involving some obscure bit of Judaica. COMMENTARY has never published a systematic discussion of one of the most obvious topics of all: the extravagant overrepresentation of Jews, relative to their numbers, in the top ranks of the arts, sciences, law, medicine, finance, entrepreneurship, and the media.