Most American adults read a print book in the past year, even as e-reading continues to grow

PEW reporting:
The proportion of Americans who read e-books is growing, but few have completely replaced print books for electronic versions.
The percentage of adults who read an e-book in the past year has risen to 28%, up from 23% at the end of 2012. At the same time, about seven in ten Americans reported reading a book in print, up four percentage points after a slight dip in 2012, and 14% of adults listened to an audiobook.
Though e-books are rising in popularity, print remains the foundation of Americans’ reading habits. Most people who read e-books also read print books, and just 4% of readers are “e-book only.” Audiobook listeners have the most diverse reading habits overall, while fewer print readers consume books in other formats.

Overall, 76% of adults read a book in some format over the previous 12 months. The typical American adult read or listened to 5 books in the past year, and the average for all adults was 12 books.¹ Neither the mean nor median number of books read has changed significantly over the past few years.
http://pewinternet.org/Reports/2014/E-Reading-Update/Overview.aspx