What was it like to work with Joe Pilates?  Check out this article.  I especially like the last lines:

Once you have learned Pilates, it becomes a conscience for your body the rest of your life. For me, pure Pilates is still the best. At 88, I still have my own knees and can bend to place my hands on the floor—and oh yes! Sqveeeeze!

http://www.dancemagazine.com/issues/January-2011/Turning-Exercise-On-Its-Head