A mbassador at Large: Diplomat Extraordinary is a welcome contri bution to the literature on contemporary diplomacy, and is especially relevant to the conduct of United States foreign relations. Concomitant with pressures to escalate the level of diplomatic representation and negotiation, the Ambassador at Large, a recent innovation in the American diplomatic hierarchy, may play an increasingly important role. Should other governments follow the American lead by creating similar offices, a new, flexible layer of diplomatic relations may be added to the four which currently are most widely...