This book is about the 600 Home Run Club, an exclusive club of major league baseball players that reached 600 lifetime regular season home runs. Included in the book are HR leader-Barry Bonds, Hank Aaron, Babe Ruth, Willie Mays, Ken Griffey, Jr., Alex Rodriguez, Sammy Sosa, and last years - new member-Jim Thome. The book discusses each player's career and accomplishments. Also, included are statistics of some players' fathers-Bobby Bonds and Ken Griffey, Sr. Also, Tommy Aaron's, Hank's brother - career stats are also, included. I also, showed a special player - Roger Connor, who was the baseball's home run king before Babe Ruth became a national icon. He played in the late 1880's. There is also a section on comparing the player's career statistics and a special formula for determining each player's true run scoring index, or indicator.