Whats the best book on trading Stocks?

If you could only pick one, what is the best boook ever written on learning how to trade the stock market?

Like Ive mentioned in the other forum - The Power Curvehttp://www.assoc-amazon.com/e/ir?t=f...1&a=0977801829 by Scott G Kyle. It isnt a complete beginners book but definately simple and straight forward enough to begin with - as you get further into the book it gets more complex and specifies various trading strategies.