Peter Drucker is arguably the world’s most influential management writer, but his contributions as a social theorist and philosopher are also notable. This book presents Drucker as a key thinker, whose work encompasses ideas beyond management practice. Illuminating Drucker as a complex figure, this book highlights how his work draws upon, impacts, and intersects fields such as technology, sociology, philosophy, and theology. The book presents and contextualizes Drucker as an important historical figure, whose work resonates in a contemporary world where moderation between extremes is an essential ingredient in interpreting and navigating complex events and processes. Combining deep insights into Peter Drucker’s life and work, this unique book is valuable reading for scholars, students, and reflective practitioners of management as well as those with an interest in intellectual history more broadly.