“No one knows the not-for-profit sector and its most effective leaders better than Meehan and Jonker. Their book is a master class on what it takes to drive meaningful impact. In tackling the fundamental questions—strategy and focus, discipline and accountability—the authors get to the heart of what every mission-focused leader needs to understand. Engine of Impact is a book to read and re-read—the definitive guide for all who aspire to lead high-performing and high-achieving organizations.”