Complete Pianistic Book

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Are you people acquainted with Simon Fischer's "Practice" and "Basics" for violin?

What I want is a book like those, just that for piano. I know that books will not give me all the answers, but they help me a lot to get at least close to them.

Like Simon Fischer's, is there a book (on piano) that discusses the physical motions.
But, do you think I could get one like that free? online? Or are they expensive?