Books by Erik Du Plessis

Erik du Plessis is President of the Johannesburg-based research agency, Impact Information, famous for its Adtrack system of monitoring the memorability of television advertising, which has been adopted by the UK, Swedish, Korean and East African markets. Impact is now part of the Millward Brown Group, one of the world's top 10 market research companies (owned by WPP) with 65 offices in 39 countries.