This is a great book and a "must-read" for everybody who's either engaged in implementing a Kanban system or thinking of doing so. Whether you've been using Kanban for a while or is new to the method: This book has something to offer!
In this book, David manages to find a very good balance between the theoretical aspects of the method and valuable practical examples.
The first part contains a very good introduction to Kanban and explains why you should consider using it. In the second part David goes on to explain the fundamentals of the method, such as the importance of visibility, limiting work in progress and creating a continuous improvement culture in your organization.
The third part gives a detailed description of how to implement a kanban system; how to go about visualizing the value stream, limiting work in progress and offers great advice on more advanced topics such as "classes of service" and two-tiered Kanban systems. In the fourth and final part more advanced topics such as bottlenecks, issue management and sources of variability are discussed.
This is a well-written book, easy to read and with lots of great tips and advice on how to implement a Kanban system. It is definitely worth the money.