Visit your local bookstore:
Visit your local bookstore and check their audio book section. Sometimes these stores put used audio books for sale. If you cannot find any used audio books, it does not hurt to talk to the store manager and get his or her advice on the best place to find used audio books.
Read classified ads:
Go through the classified ads in your local paper. Sometimes you will find someone selling their used audio books collection for a low price. You can also put a low cost want ad in the classified section so anybody that might be looking to sell off their audio books collection can call you directly and sell them off to you.
Go to yard sales:
Try to visit a few yard or garage sales during the weekend in and around your area. You might be able to find some used audio books. However, you will have to search carefully as not all sales will have such items. You can also look for estate and church sales in your area as they might also be selling used audio books as well.
Go online and visit various websites that deal in used audio books. Here you will find many used audio books at competitive prices. You can also do research on the internet and look for other large sites that only deal in used audio books. Some sites might also have trading facilities where you can trade your used audio books with others. You can usually purchase these audio books with your credit card online with direct shipment to your home within a few days.
Visit different book clubs:
If you have a few large book clubs in your area, it might be a good idea to visit them and start meeting other people that might be interested in used audio books. You could meet someone that is looking to sell his or her used audio books collection.