In 1973, New York Times reporter Grace Lichtenstein was approached to write a book about the fledgling women's professional tour. It turned out to be a pivotal season in the sport's history, and the book concludes with an in-person account of the famous Battle of the Sexes match between Billie Jean King and Bobby Riggs. The subtitle of the book is, "Behind the Scenes in Women's Pro Tennis," and Grace got to know the players--including Billie Jean--well enough to deliver exactly that. In our conversation, we talk about how the book came about, how it was received, and what press coverage was like for women's tennis in 1973. We also discuss how Billie Jean King has changed in the last half-century, the difficulty of covering tennis in such an intimate way today, and what it would take to write a behind-the-scenes look at a contemporary player such as Serena Williams.