The second century B.C. is one of the most prolific periods in the production of Greek and Hellenistic art, but it is a period extremely vexing to scholars. Very few of the works traditionally cited as examples of this century's art can be dated with certainty, and those that plausibly belong to it reflect no obvious general trends in function, iconography, or style. In Hellenistic Sculpture II: The Styles of ca. 200-100 B.C., the second of...