The increase in online retailers’ share of book spending, a gain in women’s spending on books compared to men, and the penetration levels of e-books in different consumer book categories are some of the trends found in 2013 U.S. Book Consumer Demographics and Buying Behaviors Annual Review, a new study just released by R.R. Bowker. The study is based on information from Bowker Market Research’s consumer panel of almost 70,000 Americans who bought books in 2012.

“The Review reveals the larger industry impact of the growth of e-books,” said Jo Henry, director of Bowker Market Research, a service of ProQuest affiliate Bowker. “This is more than simply a format change. Ebooks are driving powerful behavioral changes among book buyers. The Review captures those trends, providing greater ability to predict and prepare in a very dynamic landscape.”

The 2013 U.S. Book Consumer Demographics and Buying Behaviors Annual Review is available now by visiting www.bookconsumer.com. Through August, the report can be purchased for $799 for a single-use PDF or print copy. After August the price rises to $999.