[3][4] Libby graduated from Shortridge High School in Indianapolis, also attended by several notable authors including Kurt Vonnegut.
Libby was sports editor of the Herald Statesman then later worked for the New York Post.
[3] Libby wrote several books on sports figures including Rod Carew, Wilt Chamberlain, Phil Esposito, A. J. Foyt, Catfish Hunter, Fred Lynn, Rocky Marciano, Pete Rose, O. J. Simpson, Willie Stargell, and Fran Tarkenton as well as books on hockey, auto racing, professional football, and college football.
He also co-wrote several books on celebrities and sports people including Nancy Reagan, the Roosevelt family, Rick Barry, Vida Blue, Monty Hall, Richard Petty, John Roseboro, Nolan Ryan, and Jerry West.
He was named to the Southern California Jewish Sports Hall of Fame in 2004.