(It is mainly aimed at the lovers who have just started to contact billiards and some students who feel that they can't master their basic skills well. Through the understanding of the basic theory of billiards, form the basic concept of billiards, learn the standard billiards posture, including hitting action, how to hold the rod and standing posture, and find the action suitable for yourself. Then through the basic white ball and straight ball practice to improve the stability of hitting.)