David A. Aaker is the E.T. Grether Professor of Marketing Strategy at the Haas School of Business at the University of California, Berkeley. He is a consultant to dozens of companies, including AT&T, Coca Cola, MasterCard, and General Motors. He is the cofounder, with Erich Joachimsthaler of the firm Aaker-Joachimsthaler Prophet Brand Strategy. His previous books include BRAND LEADERSHIP and MANAGING BRAND EQUITY, both published by The Free Press.
Erich Joachimsthaler is the founder and CEO of Vivaldi Partners, a strategy, innovation, and marketing consulting company. He has published around 60 articles in academic journals centered on marketing issues. His most recent book focuses on the broadening strategic role of marketing in building growth businesses and is entitled: Hidden in Plain Sight: How to Find and Execute Your Company’s Next Growth Strategy