A training ball for pool type games. The training ball may comprise an array of visually coded bounded shapes disposed on the spherical exterior surface, wherein each one visually coded bounded shape has a characteristic visual coding such as color, and a diametrically opposed corresponding visually coded bounded shape having substantially identical characteristic visual coding, and wherein the array covers substantially all of the spherical exterior surface of the solid sphere. All of the visually coded bounded shapes display characteristic visual coding which is easily visually discernible from each adjacent one of the visually coded bounded shapes. In an associated method of play or practice, a player may visually hypothesize a straight line passing through the center of the training ball using the opposed similar visually coded bounded shapes, mentally set up a shot, and then execute that shot.