After months of speculation, Amazon on Friday introduced a digital subscription service that allows subscribers unlimited access to a library of e-books and audiobooks for $10 a month.

The service, Kindle Unlimited, offers a Netflix-style, all-you-can-read approach to more than 600,000 e-books, including blockbuster series like “The Hunger Games” and “Diary of a Wimpy Kid,” nonfiction titles like “Flash Boys” by Michael Lewis, as well as literary fiction and classics.

So far, however, none of the five biggest publishers appear to be making their books available through the service.

HarperCollins, Hachette and Simon & Schuster, for example, are not participating, representatives from the three companies confirmed.