If you’re in the area, you might want to drop by Arlington’s Central Library (Quincy Park). The annual book sale is on this weekend, 10a to 6p Saturday, and 12p to 6p Sunday (half price day). Arlington’s full of smart people with overflowing bookshelves, so I imagine you’ll find lots of good stuff there.* Go check it out.
*I have to imagine, and not confirm, because I can’t permit myself to get anywhere near such an event.