Lean is not sustainable without the culture to support it. This culture is a complex amalgam of leadership values, open communication, training and development, and measures to build trust. People are the key and, indeed, the early name for the Toyota Production System was the "Respect for Humanity" system. "Toyota Culture" describes how a supportive and continuously improving culture has been developed at Toyota's American plants. The book goes into considerable detail of the "People Value Stream" at Toyota and how it is sustained and developed. It is a long book packed with insights and case studies, but there are no quick fixes here - no "do this and you'll be sorted in a year" magic pills. It's a slow process of building trust and working together. That's what lean is all about and this book is essential reading for anyone aiming to build a continuously improving lean organisation for the long term. It is true that there are no quick fixes but surely the results, and the joy of working in such an organisation, make the effort worthwhile.