If you put your customers first, work closely with your suppliers, offer the best quality and treat your employees well then you will be successful. That's what IN-N-OUT learned over the past 60+years.
Background: IN-N-OUT was started by Harry and Esther Snyder in 1948. After 62 years it is still a family owned business with over 200
+ locations and has an almost cult following on the West Coast. The menu has remained virtually unchanged after all this time.
"QUALITY, CLEANLINESS, AND SERVICE!" Is the foundation for the success of this family business. In-N-Out has its own butchers, bakes its own buns, uses only the highest quality vegetables and its fries are all made in house from raw potatoes.
Only the store managers flip the burgers: A manger can be paid over 100K and is the only one running the grill. "It was the altar upon which the whole enterprise rested". Talk about the Gemba...they live it.
In-N-Out has its own University for training managers. "Since every burger was made to order- a beef patty didn't go down until an order ticket went up. It required a tremendous amount of coordination and speed, requiring three to six months just to learn to operate and manage."
It's a combination of standardized work with respect for people. "While those at the store level were expected to rigidly adhere to procedure, the company had a real "respect for creativity and judgment." This sounds like a Lean company to me.
The book talks more about the family than the systems: The book chronicles the history of the Snyder's and the growth of In-N-Out. It's more of a biography of the family: their successes and failures both in their personal lives and the business. It begins in 1906 with Harry's father and ends in 2008 with his granddaughter Lynsi (heiress to the burger fortune) giving birth to twins...and the opening of store 215.
I ate my first In-N-Out in 1996 when I moved to California. The sheer volume they do in a store is mind boggling while still putting out a high quality product. The employees are happy and the customers don't mind waiting in long lines.
This book talks much about the Snyder family and by understanding them it's obvious to see that great leadership and a respect for people has produced another American icon.