An in-person pool lesson is a great way to go, but in the meantime Tor's website offers hours of video instruction, some free, some at a reasonable cost.
The Zero-X website recently added the 4h17m "Secrets III - Controlling the Cue Ball" which is a great video for anyone playing 8, 9, or 10 ball.
The current package of all his videos totals 11 hours of instruction and costs $29.95 for the download version. The DVD set costs more.
Tor offers a lot of his video instruction free, in the form of Youtube videos. I've used YTD Video Downloader to save them to a hard drive. The Tor Lowry Youtube videos include all of Secrets II, an hour of Secrets III, and about 14 more short videos 1-10 minutes in length. I especially like his Youtube video Slip Stroke - Jab Stroke, a topic seldom covered anywhere quite as well.
In addition, Tor's "14 Days" production includes about 32 videos totally many hours of in-home instruction given free to a number of people across America.
The Zero-X website has made a great effort to have a lot of pool instruction available free, while also having retail sales of their instructional videos at reasonable prices. Kudos and many thanks to Tor Lowry and his production team.