This book has two main parts, one that examines what the world has learned so far in dealing with ageing and another which discusses how such a country as China has kept up with that learning. By combining general reviews with case studies in a comparative context, the book illustrates the state of the art via a multidisciplinary approach to understanding Western and non-Western experiences. The book is a must-have for students and researchers interested in social, behavioural, and humanistic inquiry as well as public policy analysis related to ageing with some of the leading experts that helped to define or redefine the fields.