A well-published author, he has been a contributor to every major soccer publication in the U.S. and is a featured speaker at State, National, and International events. His “Modified Laws of the Game” for youth players, used by the U.S. Youth Soccer Association, has become the standard throughout the U.S. and Canada.
Koach Karl is the author and publisher of the world-famous “FUNdamental Soccer” book series, the cornerstone of Youth Soccer practice and Small Sided games. The “FUNdamental Soccer – Practice” book been translated into Spanish, Japanese, and most notably, Chinese (the People’s Republic of China translated and distributed to all youth coaches in China).