Michael Prescott

What do Amazon's Kindle, Barnes & Noble's Nook and Apple's iPad have in common? What about authors like Stephen King, Barbara Freethy, C.J. Lyons, Amanda Hocking and Michael Prescott? If you said they represent the changing book publishing industry, you would be right. The book business is going through a major transformation. Who will the winners and losers be among publishers, stores and authors?

Just as the iPod changed the music industry a decade ago, e-books are changing the publishing world right now.

In a year when Borders went out of business and Oprah's Book Club disappeared, e-book sales surged and self-published authors got rich selling 99-cent digital books. But it also was a good year for an old print lion —Ernest Hemingway— and books about a famous 20th-century couple, Jack and Jackie. USA TODAY looks back at the rapidly changing world of books in 2011.

With questions arising about Agency Model pricing, Book Business examined the 10 best-selling e-books lists during mid August to get a sense of what prices seemed to be "right" for trade consumers.