The founder and 20-year CEO of Panera wrote a book about the story of Panera - "Know What Matters" by Ron Shaich. After hearing him on a great podcast interview, I read the book.
Panera helped invent fast casual dining changing how we eat, grew to feed over 1 in 30 Americans every week, and outperformed Warren Buffett as an investment for 20 years.
Here's a few of the most interesting parts from the story of Panera (and me at Panera for the first time in 10 years after finishing the book - my food was great and I have re-become a Panera customer)