This is a chess monograph called "King's Pawn Opening: The 2. Ke2 System" which explores this chess opening: "1. e4 and 2. Ke2". The author has played 80 completed chess games where he won 57 games, lost 20 games, and drew 3 games. All these chess games are recorded in Algebraic Chess Notation. And there are 68 chess diagrams, too.