Security Analysis

Security Analysis is the textbook that created value investing as an intellectual discipline. Written by Benjamin Graham and David Dodd at Columbia Business School in the aftermath of the 1929 crash, it provided the first rigorous framework for analyzing stocks and bonds based on their intrinsic value rather than their market price.

The book is dense, technical, and not for casual readers — but for serious investors, it is the foundational text. Graham and Dodd walk through balance sheet analysis, income statement analysis, bond valuation, preferred stock analysis, and the critical distinction between investment and speculation. Their framework for analyzing a business and determining what it is actually worth has been the basis for every serious value investor's approach for 90 years.

Security Analysis is the advanced textbook; The Intelligent Investor is the popular summary. Both are essential, but Security Analysis is where the real depth lives. Every investor who takes the craft seriously eventually works through this book.