As both a reader and a book collector, I’m a big fan of college library book sales. Held annually or bi-annually at colleges and universities across the country, these sales convert library discards and unwanted donations into desperately needed funds. Uncluttered by the kinds of books that glut public library sales, the college library book sale paints an interesting picture of town-gown reading habits.

The Millions : A Rare Book Collector’s Guide to the College Library Book Sale.