The book provides a great reference model ("Lean Extended Enterprise Reference Model-LEERM") for understanding the strucure and framework for assisting companies, their customers, and suppliers in transitioning to a total value stream conversion to lean. Unfortuately most books on the subject of lean only address the application of specific lean tools (Kanban, SMED, etc.) and do not provide the strucured methodology necessary for aligning the total organization. The Lean Extended Enterprise Model outlined in the book identifies Panels of Value Stream Integration; (1) Strategic Journey Panel, (2) Best Practices and Principles Panel, (3) Implementation Panel,(4) Methodologies, Tools,and Enabling Technologoes Panel. Additionally the book provides a formal performance measurement tool to support the Lean Extended Enterprise Reference Model. The termed used to define this model by the authors is "Lean Extended Enterprise Assessment Process-LEEAP". Seven major evaluation areas are identified in detail; (1) Leadership, (2) Customer and market focus. (3) Uniform improvement infrastructure, (4) Value stream processes, (5) Extended enterprise integration, (6) organizational learning, and (7) Performance measurement. This book is a must read reference for those companies who are serious about implementing Lean throughout the entire Supply Chain.