I studied with Mr. Fink throughout my high-school/college preparatory years and so experienced his technical work first-hand. After studying piano at the university level, I finally got around to picking up a copy of his book. Reading through reminded me of the many exercises we went through. I think that Mr. Fink's suggestions on technique are of good resource for all serious pianists. As others have pointed out here, a literal interpretation of the illustrations is not the intended point. It is most useful to use the techniques illustrated as a guide and then adapt them to your own particular usage.