Pew Internet & American Life Study: The Rise of E-reading

One-fifth of American adults (21%) report that they have read an e-book in the past year, and this number increased following a gift-giving season that saw a spike in the ownership of both tablet computers and e-book reading devices. In mid-December 2011, 17% of American adults had reported they read an e-book in the previous year; by February, 2012, the share increased to 21%.

The rise of e-books in American culture is part of a larger story about a shift from printed to digital material.