David A. Aaker

"Substantial market trends and transformational innovations are creating markets and making others irrelevant. The result is a major threat for nearly every business and a significant opportunity for a few. This book will be the first marketing strategy book to develop and leverage the concept of brand relevance. To remain relevant, a firm can create a new category or subcategory-- such as iPod, Cirque du Soleil, and eBay did-- where competitors are...