Remove item Thumbnail image Product Price Quantity Subtotal × × (eBook) (PDF) Design for How People Learn, 2nd edition1 × $19.90 $19.90 - (eBook) (PDF) Design for How People Learn, 2nd edition quantity + $19.90 × × (eBook PDF)Random Number Generators Principles and Practices by David Johnston1 × $19.90 $19.90 - (eBook PDF)Random Number Generators Principles and Practices by David Johnston quantity + $19.90 Update cart Continue Shopping Cart totals Subtotal $39.80 Total $39.80 Proceed to checkout