Swing Kings : HarperCollins : 9781094118246 : 1094118249 : 31 Mar 2020 : "This is the best baseball book I've read in years. Swing Kings is a love letter to small people with big ideas." ? Sam Walker, author of The Captain Class From the Wall Street Journal's national baseball writer, the captivating story of the home run boom, following a group of players who rose from obscurity to stardom and the rogue swing coaches who helped them usher the game into a new age. We are in a historic era for the home run. The 2019 season saw the most homers ever, obliterating a record set just two years before. It is a shift that has transformed the way the game is played, contributing to more strikeouts, longer games, and what feels like the logical conclusion of the analytics era. In Swing Kings, Wall Street Journal national baseball writer Jared Diamond reveals that the secret behind this unprecedented shift isn't steroids or the stitching of the baseballs, it's the most elemental explanation of