Amazon.com on Friday unveiled a subscription service that allows customers to read as much as they choose from its library of more than 600,000 e-books.
Subscribers to the Kindle Unlimited service, which costs $9.99 per month, can read the e-books on Amazon's Kindle reader or on any device that supports the Kindle app.
Customers can choose from books including "The Hunger Games," "Life of Pi," and "Diary of a Wimpy Kid."
Subscribers also have access to thousands of audio books.
Amazon's service competes with others in the market including Oyster, which charges $9.95 per month for unlimited access to more than 500,000 titles.