Original Penguin is offering 10% off as part of its Presidents’ Day Sale for a limited time. To get discount, use the coupon code: PRESIDENT10OFF at checkout. Plus, save even more when you apply the coupon codes: LINCOLN for $5 off $25 or more, JACKSON for $20 off $75 or more, or GRANT for $50 off $150 or more. Shipping is $5 flat. Coupon expires February 21, 2011.