This book focuses on Public Procurement for Innovation. Public Procurement for Innovation is a specific demand-side innovation policy instrument. It occurs when a public organization places an order for a new or improved product to fulfill certain needs that cannot be met at the moment of the order. The book provides evidence of the potential benefits to public and private actors from the selective use of this policy instrument and illustrates the requirements and constraints for its operationalization. The book intends to significantly improve the understanding of key determinants of effective public procurement aiming to promote innovative capabilities in the supplying sectors and beyond. It provides both case studies and conceptual contributions that help extend the frontier of our understanding in areas where there are still significant gaps.