This volume brings together the collection of papers that have shaped the human development approach with its set of concepts, measurement tools and policy perspectives.The book is divided into three sections:BLconceptual foundations comprising classic papers by Sen, Haq, and StreetanBLmeasurement which discusses the methodology for constructing the human development index and other aspects such as political freedom, gender inequality and povertyBLpolicy explorations which includes a collection of articles from previous reports