Incidentally, for those who don't know, Graham and Dodd's Security Analysis is one of -the- books on value-based investing, equivalent to K&R for C programmers. Further, the 'g' of g&d has nothing to do with the 'g' in 'pg.'

I can only recommend that book. But do not try to act on it to pick stocks - the markets got a lot more effective since Graham wrote the book.

There's an explanation with quotes of Graham in another article from slate: "Why the world's greatest stock picker stopped picking stocks, and why you should, too." (http://www.slate.com/id/2158085/)