This book is a history of the Asian Development Bank (ADB), a multilateral development bank established 50 years ago to serve Asia and the Pacific. Focusing on the region's economic development, the evolution of the international development agenda, and the story of ADB itself, this book raises several key questions: What are the outstanding features of regional development to which ADB had to respond? How has the bank grown and evolved in changing circumstances? How did ADB's successive leaders promote reforms while preserving continuity with the efforts of their predecessors? ADB has played an important role in the transformation of Asia and the Pacific over the past 50 years. As ADB continues to evolve and adapt to the region's changing development landscape, the experiences highlighted in this book can provide valuable insight on how best to serve Asia and the Pacific in the future.