Book Publishers Are Feeling Good, But Amazon May Have Other Plans

The "Big 5" book publishers are feeling good and riding high.

Unlike shrinking movie box office receipts and plummeting music sales, 2014 book sales were up a healthy 4% to 5% all year -- though the true final numbers aren't in yet.

Publishers also defeated their top frenemy, Amazon (AMZN), at least somewhat last year, by winning back control over ebook pricing in new multiyear sales deals stuck by French-based Hachette and CBS (CBS) unit Simon & Schuster. At the same time, the portion of the market sold in ebook form