Also of interest: 
approximately 50% of American adults now own either an e-reader or a tablet.  I would assume Amazon’s Kindle
and Apple’s iPad remain the leaders of those two categories,
respectively.  
Another
party heard from?  Yes!  32% of e-book readers reported that they did
so on their cell phones.  [This was up
from 28% in 2012.]  
The age
demographic is understandable.  In the
18-29 bracket, 47% read an e-book during 2013, up more than 50% from 31% in
2012.  The figures drop steadily across the decades,
bottoming at 17% in the over-65 group.  
Finally,
e-readers clung to a tiny advantage over tablet-readers.  Among those who read an e-book in 2013, 57%
used a reader, while 55% used a tablet. 
Those who used a cell phone, as reported above, weighed in at 32%, and
those who read from a computer dropped to 29%. 
