In the 1950s, the PGA settled on four major annual professional events: The US Open, The British Open, The PGA Championship, and The Masters. Between June 2000 and April 2001, Tiger Woods won all four in a row. No player had done it before, and no player has done it since.
It is hard to overstate how valuable Tiger Woods was for golf. He spent 683 weeks (over 13 years) ranked number 1 in the world golf rankings. His tournament earnings, sponsorships, and endorsements made him a large fortune. On courses, big crowds would elbow to see him play--even at the driving range and practice greens. And because of his popularity, more money rolled in for everyone in the golf business.
This book does a good job of addressing a few peripheral details while focusing on the greatest golfer in his prime.