Perhaps to no one's surprise, a new study shows that people who buy a lot of ebooks buy them online rather than through bricks-and-mortar stores. Ebook readers also buy print books, though, from the same online space.

According to the Book Industry Study Group's Consumer Attitudes Toward E-Book Reading survey, "more than half of e-book readers increased their use of apps to purchase books and more than one-third increased their use of general retail websites such as The gains for these digital vendors come at the expense of brick-and-mortar bookstores, even independents. More than a third of e-book buyers decreased their spending at national chains and 29% said they are buying less from their local indie."

Although the study says many of the buyers increased their total spending on books, it did not give dollar amounts in the press release.

It also said that ebook buyers are increasingly reading on tablets (17 percent) and smartphones (9.2 percent) but that most still use dedicated e-readers (60.9 percent). The latter number was down from 71.6 percent in the previous study.

Jane Henderson is the book editor for the St. Louis Post-Dispatch.