Cappelle, Byrne, Rempe all excellent recommendations. I've never seen Grady's breakshots and key balls tape, but I've heard good things. The tape that helped me learn the basics of 14.1 is one that I don't think is in print any more and that was Mike Sigel's original Perfect Pool series. He explains all the common breakshots and basic strategy. It also came with a tape of him running 100 balls and explaining. Long story short get some instructional materials that aren't over your head to start with. The Rempe tape is really good. Then I would get some accu-stats straight pool matches to see how it's done by the best. Get a good mix of tapes with high runs and some with a lot of safety play.