This book is a must-have for any blues enthusiast. Written by Petra Williams, the author of several books on the topic, this revised edition of Flow Blue China I and II is a comprehensive guide to the blues in China. The book is signed by the author and covers a range of topics related to the blues, including its history, musicians, and cultural significance. The book is written in English and is perfect for those interested in learning more about the blues in China. It is a great addition to any music lover's collection and is sure to provide a wealth of information on this fascinating topic.