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Garth Risk Hallberg

Garth Hallberg, Worldwide Director of Differential Marketing at Ogilvy & Mather, is one of the few people in the industry with extensive experience in both media advertising--at J. Walter Thompson--and direct marketing--at Ogilvy Direct. His clients have included such leading marketers as Kraft, Unilever, Seagram, Kimberly-Clark, Sears, and Ford.