OK. I got the point (can't find now from which post; maybe it was in another thread) that I do not need to buy the whole upsell and all from O'Neil, his basic book is enough. The big question is - which one of these two fairly similar titles? 2009 - http://www.amazon.com/How-Make-Money-Stocks-Winning/dp/0071614133 2010 - http://www.amazon.com/Money-Stocks-Complete-Investing-System/dp/0071752110
I suggest this one: http://www.amazon.com/Make-Money-St...2&sr=1-1&keywords=How+to+Make+Money+in+Stocks I haven't read them all, but, generally speaking, the older the edition, the less hustle. And you can pick this up for a penny. The first edition is also available, but costs $5+ used. Or you can just check them out of your library.
Depends on what one does with it. Price quotes are available to everyone, yet there's no lack of traders who insist on going short in an uptrending market and long in a down.