"Good is the enemy of great", this is the first and main item of this book, that explain how a good company become a great company. Collins and his team of researchers began their quest by sorting through a list of 1.435 companies, looking for those that made substantial improvements in their performance over time. Peppered with dozens of stories and examples from the great, the book offers a well-reasoned road map to excellence that any organization would do well to consider.