I bought the Haynes 1976-1985 Manual from Autozone. When the guy scanned it it came up with a price of 1 penny (regularly $17.99). He called the manager over, she rescanned it and confirmed it was one cent and said Auto Zone was clearing out old stuff and the price was correct. Maybe selling it for a penny rather than throwing it away is a way for Autozone's inventory to post correctly on the corp computers. I gave them the penny and left with the book. She also said there were other items like that but had no idea which items were a penny.

The book is not great but was better than nothing. For anyone interested, she seemed to imply that this "house cleaning" was going on chain wide, so if you happen to be in a AutoZone and they have the book, you might want to take it up to the counter and have them scan it for the cost.