Here’s a video demonstration of recommended “best practices” for break technique, from Vol. III of the Billiard University (BU) Instructional video series:
For more information see the break shot technique advice resource page and Vol. I of the Video Encyclopedia of Nine-ball and Ten-ball (VENT).
Here’s a good demonstration of proper jump shot technique:
For more jump shot information, advice, and demonstrations, see the jump shot resource page.
Here’s a good video demonstration of proper massé shot technique:
For more massé shot information, advice, and demonstrations, see the massé shot resource page.