I have to say, I'm very impressed by your site.

I've always wanted to create an online bookstore in Malaysia but never found the right distributors to give me competitive prices. You guys seem to have found that solution. Your prices are indeed very competitive.

A few words of advice:

Double check your prices, some books say they're 50% off but the "normal" price is double the actual price of the book (Eg: 11/22/63)

Make sure the cover art you display is the cover art of the physical book you are selling, not the kindle/ibookstore version. (Eg: Eye on the world)

Make it easier for people to browse by genre.

Make it possible to search by author.

If you want to encourage impulse purchases, create an ability to sort by prices and by biggest discounts.

Good luck!