Jochen Wirtz is an associate professor of marketing at NUS, the founding director of the UCLA - NUS Executive MBA Program, and an Associate Fellow of the Saï¿d Business School, University of Oxford.Dr Wirtz is a leading authority in the field of services marketing. Services Marketing - People, Technology, Strategy, (2007, 6th edition, Prentice Hall), which he co-authored with Professor Christopher Lovelock, is the best-selling services marketing text book worldwide, and Essentials of Services Marketing (2009, Prentice Hall), which he co-wrote with Lovelock and Professor Patricia Chew, is the worlds first full-colour services marketing text.