Books on Sale

Looking for cheap books but rich in content? There are lots of bookstores but only few offer less on their bestsellers. Last time I checked and the last time I bought a book, I got it 50% off of the price. Imagine the discounted rate and the savings I had that time. To think that I did not bought that on a season of sale, I must be lucky or the bookstore is just awesome. I love books especially those with lessons that are essential to building myself an investment.