This book is about 11 companies who made a leap from “Good” to “Great” and what caused them to make that leap. And what is the definition of Great? Continuous 15-years highest stock market returns is the definition author uses of which I was highly skeptical about. I am sure there can be many other data and non-data points like Revenue growth, Innovations and Self-disruptions made by the company that can be used or even a longer time horizon wouldn’t hurt. Except this reservation of mine, I liked the way the book is researched and the conclusions are drawn. The book is divided into nine chapters and each chapter is about the common things that the research team found in the 11 companies and did not find in the other non-great companies.