Library Journal has an interesting article on the increasing number of audio books being produced: 7,237 books in 2011; 16,309 in 2012; and 35,713 in 2013, the latest year for which annual figures are available.
Although fiction continues to dominate, about 30-40% of audio books sold are non-fiction. There is a growing interest in this category of audio books for educational purposes. Celebrity memoirs read by their authors are also popular, and self-help books and comedy are becoming more in demand.
For the full text of the article, please see
http://reviews.libraryjournal.com/201...