Book excerpt: How do top performing companies achieve and sustain exceptional performance in product innovation? According to world-renowned product innovation experts Robert G. Cooper and Scott J. Edgett, companies broaden their approach and focus on the four points of the Innovation Diamond™: Product Innovation Strategy, Portfolio Management, Culture and the Stage-Gate Idea-to-Launch process. The authors offer compelling evidence, best practices, and practical advice for successful implementation of the Innovation Diamond. This impressive collection of eighteen of their best and most popular articles leverages over three decades of conducting some of the world's most celebrated research on the topic of product innovation.