Shigeo Shingo was an engineer, a thinker, and a philosopher. And his perspective on manufacturing is so original and so well-structured. That’s why “Toyota Green Book” is a must-read for any Lean professional. And even if you’re not a Lean professional but work in a manufacturing environment, it’s still a must-read. I’d probably be cautious about recommending it to beginners, but I’d definitely recommend keeping it on their must-read list.
Now this book, being over 30 years old, has many obvious disadvantages. Starting from the translation, the structure of chapters 9 to 12, the quality of the images, etc… However, it is still the best book on TPS. And if it is not the best, then it is on the short list.