The book that named TPS "lean production" and launched the global lean movement. Published by Free Press/Rawson Associates, 1990. Based on MIT's five-year, $5 million International Motor Vehicle Program (IMVP) study of the worldwide auto industry.
Overview
The book demonstrated through rigorous comparative data that toyota-motor-corporation's production system was dramatically superior to Western mass production — roughly twice the productivity, half the defects, and a fraction of the inventory. james-womack, daniel-jones, and Daniel Roos coined the term "lean production" to describe what Toyota did.
Key Arguments
The IMVP study compared 90 auto assembly plants across 17 countries. The data was unambiguous: Toyota and its best Japanese competitors were not marginally better but categorically different. The book frames this as a paradigm shift comparable to the transition from craft to mass production — lean production as the third stage of manufacturing history.
The core argument: lean production combines the best features of craft production (quality, flexibility) with the best features of mass production (cost, volume), while avoiding the worst of each (craft's slowness, mass production's rigidity). This framing made lean comprehensible to Western managers who understood it as "better than what we do now" rather than requiring a cultural transformation.
Significance
The book's impact was enormous: it put TPS on the agenda of every manufacturer worldwide and created the demand for lean implementation that continues today. The term "lean" — chosen deliberately to suggest doing more with less — became the dominant Western framing for TPS concepts. Critics note that the book emphasizes the production system (tools and techniques) more than the management philosophy (kaizen, gemba, respect for people) that makes TPS sustainable. This tool-centric framing may have contributed to the high failure rate of Western lean implementations.