I used to buy books at Computer Literacy ages ago, I probably still have one of their T-shirts in a box. Borders Books had a good selection of serious computer

I used to buy books at Computer Literacy ages ago, I probably still have one of their T-shirts in a box. Borders Books had a good selection of serious computer books in the stores in Silicon Valley. I would buy books there when I had a coupon. The Stanford Bookstore on campus has a great selection, including all of Don Knuth's books. Amazon's discounting is obviously a problem. O'Reilly books has a daily email with one (or sometimes all) of their books in ebook format for half off. There is large online marketplaces of used books, including used textbooks, which further undercuts new book sales.