I bought these five textbooks for $140 on Craigslist. I listed them on Amazon on August 1st. Here are the sales within 10 days. Words Their Way: Sold for $44.51 on 8/7/15 Educational Psychology: Sold for $110 on 8/8/15 Anatomy and Physiology: Sold for $210 on 8/8/15 Total Sales: 364.51 Fees ($67.72) Costs ($140) Profit: Read More