Go to Half.com, Audiobooks.com, Amazon or Powell's and enter the title or author of the audio book you wish to find. Once you find the book, you can add it to your online shopping cart. You can bid on used audio books on eBay by clicking the "Place Bid" button. You can also buy items outright on eBay.
Continue shopping to add selections, or if you wish to purchase only the item you selected, you can check out by adding your shipping and billing address and your method of payment. All of the Web sites mentioned in Step 1 take credit cards, and many like eBay and Half also take PayPal, which is similar to an online bank where you can use your account to pay for items online.
Add any coupon codes you have. Coupon codes are sometimes available and may include percentages off the price as well as discounted or free shipping.
Verify that all the information you have added is correct. It can be difficult to fix problems with your address after the company has processed your order, so double-checking your information is a good, safe idea.
Click the "Buy Now" or similar button to process the transaction, and your item or items will be on their way. Many retailers can ship the products the same day, and depending on the shipping selection, you may even see your audio book the very next day.