It sounds like your just getting your feet wet in the world of trading. Its my opinion the best book for an absolute beginner is John Murphy's book introduction to technical analysis. If you look hard enough you can get an ebook for free on the internet. i won't give the exact link here because this site (T.L.) is a top notch reputable site. However, over at the stock market forum for India at
www.traderji.com they don't respect copyrights and you can find links to just about any trading ebook floating around the net.