If you have a Kindle or a Kindle fire you will be able to have books lent to you from Amazon. You also need to be a subscriber to the Amazon Prime program as well. From what I have read the program will be limited in the beginning , about 5,000 titles but more than 100 current and former national best sellers. So far none of the big six largest publishers that are in the US are participating, also Amazon will be limiting borrowers to one title at a time but you can keep that title as long as you would like too. Once you get a new book the old book will be deleted from your library, seems pretty cut and dry to me on how the lending will work. The program has been named Kindle Owners’ Lending Library, and cannot be accessed via apps on some other devices, which means it won’t work on Apple’s iPad and iPhone even though you can read Kindle books on those devices.