The New York Times and the Associated Press both got a preview of the Book Industry Study Group’s new report on the used book market. Used book sales rose eleven percent to 2.2 billion dollars in 2004. Three-quarters of that business was in textbooks, though non-textbooks sales have increased more than textbook sales.

The New York Times article touches on concerns about surging online sales’ affect on the health of bricks-and-mortar shops. I’d be curious if there are any statistics about what portion of online sales are made by booksellers with physical shops. The used and new markets and the online and offline markets are all more integrated than we think.