This chapter is from Security Analysis, which has withstood the test of time as well or better than any investment book ever published. Now the Sixth Edition updates the masters' ideas and adapts them for the 21st century's markets. This second edition, which was published in 1940 and still considered the definitive edition, has been updated by a dream team of some of today's leading value investors. Featuring a foreword by Warren E. Buffett (in which he reveals that he has read the 1940 masterwork "at least four times"), this new edition of Security Analysis will reacquaint you with the foundations of value investing—more relevant than ever in the tumultuous 21st century markets.