An extremely interesting and thought provoking introduction to the principles underlying lean manufacturing (and the Toyota Production System). The authors build on the concepts outlined in The Machine That Changed The World, but this is not simply a rehashing of previous ideas. The authors move away from Machine's heavy focus on benchmarking and the motor industry and illustrate the successful use of lean thinking in a variety of manufacturing situations. Although the book focuses far more on the practical implementation of lean thinking than Machine, it does so at quite a high level, using case study illustrations rather than providing a 'how to' guide. Lean Thinking's value lies in challenging accepted mass production thinking and introducing the reader to new, thought provoking principles and approaches. On this basis, it is a superior work to Machine and one that I'd recommend to anyone interested in manufacturing, production or operations management.