Book excerpt: Business and management approaches to innovation tend to focus on incremental changes to existing products and processes, such as new product development, design-thinking, and business model innovation. In contrast, Radical Innovation Challenges focusses on radical and breakthrough innovation, and identifies its distinct sources, organization, processes, and outcomes. This book illustrates conceptual models and practical methods to better understand and manage radical innovation, and provides an argument for an iterative coupling process, between knowledge-push and demand-pull challenges and opportunities.The book draws upon a distinct interdisciplinary body of knowledge to provide a crucial insight into the latest research and experience, and demonstrates how radical innovation practices and policies can be applied to fundamental corporate and social challenges such as climate change.