Definitely "The Machine That Changed the World" by Womack, Jones, and Roos [0]. This is "the first book to reveal Toyota's lean production system." Before reading it, I had never imagined just-in-time production or value chain mapping, or vehicle assembly lines that can profitably produce quantity one of a product before being reconfigured to produce a different model (SMED: single minute exchange of die). Now I see…
Kaizen seems to be manufacturing's equivalent of agile. Everyone says they do it, but almost no one actually does it because that would mean totally re-configuring their business.
Not gonna lie, it's very hard