Grinding It Out is Ray Kroc’s 1977 memoir detailing his unlikely rise from a persistent salesman to the creator of the global McDonald’s franchise. Starting late at age 52, Kroc transformed the McDonald brothers’ small fast-food restaurant into an international powerhouse by pioneering franchising, focusing on quality control, and mastering business strategy and customer service. The book highlights Kroc’s relentless work ethic, his early struggles selling products like paper cups and milkshake machines, and the lessons he learned about perseverance and innovation. It’s an inspiring story that shows success doesn’t require being a prodigy but comes through grit, timing, and smart business decisions. Widely recommended for entrepreneurs and salespeople, it offers an inside look at how McDonald’s revolutionized the restaurant industry.