Rotational motion applied to a ball, especially to the cue ball by the tip of the cue , although if the cue ball is itself rotating it will impart (opposite) spin (in a lesser amount) to a contacted object ball . Types of spin include top spin , bottom or back spin (also known as draw or screw ), and left and right side spin , all with widely differing and vital effects. Collectively they are often referred to in American English as "english". Its invention is credited to François Mingaud. See also massé .