Book excerpt: Lean manufacturing is not a collection of best practices from which manufacturers can pick and choose. It is a production philosophy, a way of conceptualizing the manufacturing process from raw material to finished goods and from design concept to customer satisfaction. The tremendous benefits of lean manufacturing are realized when a lean strategy is used to support well-conceived business goals. Running Today's Factory synthesizes lean manufacturing into a concise and coherent strategy for manufacturing managers. The philosophies and principles presented are reinforced with examples from the author's research and consulting work. Common obstacles and barriers that may be encountered in a lean environment are discussed, and both intuitive and mathematical proofs are provided to illustrate why lean philosophies can transform modern manufacturing. After reading Running Today's Factory, you'll understand why Lean is truly a different way of thinking about manufacturing. Co-published by Society of Manufacturing Engineers and Hanser Gardner.