Thirty Days in May by Hal Higdon vividly chronicles the intense, month-long saga of the 1970 Indianapolis 500, capturing the high-stakes drama of drivers like Mario Andretti, A.J. Foyt, and the Unser brothers as they vie for starting positions, navigate danger, and chase victory at the "Greatest Spectacle in Racing," set against the backdrop of the Indianapolis Motor Speedway's relentless excitement and peril.