Where’s a librarian when you need one?

There is a book that I can’t find for a long time. I’ve seen its author on one of the late night shows many years ago.

The dude specializes in hand training. He trains surgeons, pianists and athletes. He showed some really neat tricks – like doing a horizontal wave with just the tips of his fingers. He was hawking a book that he wrote. And I’d like to have that book. But I don’t remember what it was called and keyword searches don’t bring anything.