Have you ever swapped paperbacks with a friend? Then you’ve participated in a book exchange, also known as a book swap or trade. Now imagine a website that gives you access to thousands of book-reading friends and keeps track of multi-way swaps so that you can send a book to Thelma, but in return receive a free book from Louise. Now you’ve got the ultimate book club for readers who don’t mind spending a few minutes wrapping up their old books and mailing them out.
