Consumer ebook sales have certainly stalled and most notably in fiction. (bookmachine.org)
And, while most consumer ebooks are still simple black and white text, educational publishing uses the full gamut of rich media. (activitypress.com)
-- Across the entire US ebook market, ebooks without ISBNs now command a greater share of consumer ebook purchases, reading time, and author earnings than all of the AAP's 1,200 publishers put together, including the Big Five. (writerfulbooks.com)