The Edward R. Hamilton
catalog is a monthly news print listing of heavily
discounted
books. I assume they get
overstocks and out of date prints, but many of their prices are excellent. Their prices are particularly good on computer books, allowing one, if they wished, to by books from this catalog, and sell them on
half.com at a
profit as a sort of
arbitrage.
They also have a website at edwardrhamilton.com.