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The acclaimed bestseller about visual problem solving-now bigger and better "There is no more powerful way to prove that we know something well than to draw a simple picture of it. And there is no more powerful way to see hidden solutions than to pick up a pen and draw out the pieces of our problem." So writes Dan Roam in The Back of the Napkin , the international bestseller that proves that a simple drawing on a humble napkin can be more powerful than the slickest PowerPoint presentation. ...Vis mer