The book I have found most influential is Toyota Culture: The Heart & Soul of the Toyota Way by Jeffery K. Liker.
This book is on lean thinking and shares deep insight into the company’s culture, defining the basic principles that led to its success as the global leader in operational excellence and earned it the title of the world’s most profitable car manufacturer that produces high-quality cars with minimum manpower and inventory.
(This story appears in the 06 November, 2009 issue of Forbes India. To visit our Archives, click here.)