The 2019 Major League Baseball season saw the most home runs 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 all: the swing. In this lively narrative romp, he tracks a group of baseball’s biggest stars --- including Aaron Judge, J.D. Martinez and Justin Turner --- who remade their swings under the tutelage of a band of renegade coaches, and remade the game in the process.