This probably is one of the greatest investing books ever written, but it suffers from two flaws: 1) like all such books, it could be condensed into about 20 pages. The supporting evidence could be put in an appendix for those who want to see it. 2) it is very dated. I was 13 when Graham published his last edition, and I just can't get excited reading something that talks about 1970 like it was last year. The commentary by Zweig, widely criticized, is actually the saving grace. His writing style is more current and he brings things up-to-date, sort of, but even his commentary misses the Great Recession. This would all be much better if it could be taken out of its temporal context and summarized more generally. Charts that make a point using data from decades ago is okay, but the body of the book is so immersed in old dates that it just feels, well, out of date!