Over the last two decades, China's extraordinary rate of economic growth has been driven by the 120-150 million people who have flocked into China's cities from the surrounding countryside in search of a better life. This book examines the manner in which these people live, work, and interact with their urban cousins. A particular feature of the book is its comparative focus, with interesting parallels drawn between China's experience with mass internal migration and labour market restructuring and the experiences of India, Mexico, and France.