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    The Back of the Napkin (Expanded Edition): Solving Problems and Selling Ideas with Pictures
    New €29.50
    You save €2.51 (8%)
    Book€26.99
    You save €2.51 (8%)
    New €29.50€26.99

    The Back of the Napkin: Solving Problems and Selling Ideas with Pictures
    Book€8.49
    €8.49