This is one of the essential yoga texts. No serious yoga student can be without it. It was originally published privately in a short run a few years back and sold thousands of copies with no advertising. The new edition has a helpful new forward by the translator that gives more in-depth info on how Jois came to study yoga inthe 1920's. Beautifully designed, flawlessly translated, and amazing historical photographs. With all the silly yoga books out there, we should be grateful that Jois and some others still maintain high standards.