Vol. III of the The Video Encyclopedia of Pool Shots (VEPS), Vol. I of the The Video Encyclopedia of Eight Ball (VEEB), and Vol. II of the Video Encyclopedia of Nine-ball and Ten-ball (VENT) cover all important principles involving pattern play, strategy and safety play. Here’s an explanation of some of the basics:

And here are a few others:

Here’s a good overview of safety play and useful drill for practicing safeties, from Vol. III of the Billiard University (BU) Instructional video series:

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