By Dennis Abrams

The long wait is now over. As of late last month, all seven Harry Potter novels are available through the Pottermore shop, the exclusive retailer for Harry Potter e-books and digital audio books. U.S. and U.K. English editions are now being sold; as are French, Italian, German and Spanish editions, with additional languages coming later this year.

Each e-book purchased is available for download on a wide range of devices and platforms, including personal computers, e-readers, tablets and mobile phones. Compatible formats include Sony’s Reader, the Nook, Google Play and Kindle; Kindle users may purchase their copies through a dedicated Pottermore page on Amazon, which will direct them to the shop to make their  purchase.

At Slate.com, Matthew Yglesias said that with this move, J.K. Rowling has transformed book publishing. “This is exactly the kind of thing I had in mind when I said it was ridiculous to be worrying about book publisher collusion and price-fixing. It’s just way too easy to bypass traditional distribution channels in this space for anyone to have enduring pricing power.”