Mark Graban

Mark Graban

Mark Graban is an internationally-recognized consultant, author, and professional speaker, and podcaster with experience in healthcare, manufacturing, and startups. Mark's latest book is The Mistakes That Make Us: Cultivating a Culture of Learning and Innovation, a recipient of the Shingo Publication Award. He is also the author of Measures of Success: React Less, Lead Better, Improve More, Lean Hospitals and Healthcare Kaizen, and the anthology Practicing Lean. Mark is also a Senior Advisor to the technology company KaiNexus.

What Toyota’s 1992 Booklet Means by Kaizen and Job Ownership

Lean Blog Post Cover Image - 2026-05-04T072020.396

Nearly two million improvement proposals in a single year. Ninety-seven percent implemented. That doesn’t sound like the suggestion-box model most organizations know. It sounds like something else. The number comes from Toyota’s April 1992 publication “The Toyota Production System.” It…

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