This may or may not be true but I found it a fascinating assertion. I have to admit that long books are slightly intimidating (though they didn't used to be). I still read them but I have to break them up so that they are read like different books (Murakami's 1Q84 too me about six months to read, not because it was a particularly difficult book but because I read about 2-3 books in between each major part of the novel).
|Biography: easier with pictures|
I also find that authors who write 50 page chapters with no breaks annoy me. Sometimes I can sit for an hour straight without getting up but it's rare. Generally, I read in 10-20 minute spurts because I often read on the metro or with a phone next to me, etc. Shorter chapter breaks or natural dividing points keeps me moving but I find I read these books faster, too.
I have no idea what this means in terms of future readers, but the two authors I alluded to earlier on both suggested that the tendency to have images or illustrations in books will continue because people expect this now and readers need this now. I don't know if that's true but an illustration every once in a while certainly doesn't hurt!