For many years J. Paul Getty considered the Lansdowne Herakles the most important antiquity in his museum. In addition to appreciating the history of the sculpture and its artistic merit, Mr. Getty had considerable affection for the hero himself. In this revised and expanded edition of his 1966 monograph, Dr. Howard uses numerous illustrations to introduce new information concerning the modern history of the sculpture and to review the arguments for attributing it to different sculptors. In addition, he proposes its possible attribution to the fourth-century Athenian master Euphranor, an artist not previously associated with the statue. The Herakles is now displayed in the new presentation achieved by the museum's antiquities conservator Zdravko Barov, whose report concerning his procedure and findings is also presented.