The book "Innovation Policy in a Knowledge-Based Economy" offers a comprehensive analysis of innovation policy from the perspective of a knowledge-based economy. It highlights the fundamental changes associated with the transition to such an economy and discusses the need for new analytical foundations for innovation strategies. The authors, Patrick Llerena and Mireille Matt, argue that knowledge is a crucial factor for economic growth and that innovation processes are systemic. The work relies on dynamic and systemic approaches to capture the complexity of knowledge creation and dissemination. It is shown that the traditional view of market failure concerning innovation policy is no longer sufficient to address today's challenges. Instead, knowledge is seen as multidimensional and dynamic, opening up new perspectives for the design of innovation strategies.