How do you start up in the books business?

I have given this a lot of thought over the last few years, as it would be an Excellent business to own. The best way to start without major capital investment is to hit yardsales and buy as many books of whatever genres are available. Then rent a stall at the local flea market and offer trade-ins and re-buys. It will get you started and offer a chance to discuss books with like minded folks.