This 178-page manual serves as the official guide and handbook for all Minor League Baseball umpires using a two-umpire system. The manual has been updated and contains such subjects as mechanics, coverage, positioning, responsibilities, optional coverage's, procedures, and terminology used in a two-umpire system by professional umpires. More than 100 detailed diagrams highlight the proper mechanics, positioning, and coverage's for virtually every type of play in a two-umpire system. The concepts and methods contained in this book are those that are taught at the annual MiLB Advanced Course for candidates seeking umpiring positions in professional baseball. These are the same mechanics which are recommended and taught by the Minor League Baseball Umpire Development staff when supervising, evaluating, and instructing umpires in all Minor League Baseball leagues. In addition, the book is made available to the private umpire schools whose primary function is to train prospective professional umpires.