As we heard previously, today is the day when the entire Harry Potter series gets added to the Kindle Owners' Lending Library. All seven titles will be available for download, but you can only access one per month and the service only works on actual Kindle devices. You'll also need a $79-a-year Amazon Prime subscription to take advantage of the library. It's a cheaper and likely more convenient way to digitally digest J.K. Rowling's adventures in wizardry, though — and with no sign of a breakthrough in publishing rights management that'd allow the books to simply be available for purchase on the regular Kindle Store, it'll probably have to do.