An email address you can use for paying via PayPal.
Estimated shipping is $3 per book. I'll send you back an email with details about the pricing and shipping.
If all's good, I'll send you an invoice in PayPal.
The prices for all the books are the same as their list-price counterparts, plus shipping and any applicable state sales tax. Note that the more items you purchase, the more likely I am to use flat rate as that tends to be a more economical and reliable option than Media Mail.
Also, depending on supplies and inclinations, I may throw in a bonus or two!