The Association of American Publishers (AAP) has just released the total sales figures for the 2011 calendar year, and there have been several blog posts commenting on this, at Shelf Awareness, Paid Content, Teleread and Passive Voice.
Overall sales were down on 2010, but the highlight?
Ebook sales increased 117% over 2010. While the year-on-year growth for December was only (only!) 72.1%, that should be compared against a year-on-year drop of 3.5% for all categories of book sales. Only three categories of books experienced growth in 2011: ebooks, downloaded audiobooks, and religious books.
It should be noted that these figures are from the member publishers, so exclude self-publishing, which is dominated by ebooks.
So, authors of Christian fiction, you are in the right place (especially if you offer your book as an ebook)!