Providing both gives us two methods by which we can attempt to contact you should any problems arise with your order (e.g. backordered product, credit card did not process correctly, etc.). Additionally, you will receive automatic email notifications about your order: the initial order confirmation with order number as well as a notice when your order ships. Lastly, you may receive e-newsletters or notice of specials/sales via email. We do NOT give your private information to anyone. You may also request to not be emailed at any time.