Amazon.com: The Intelligent Investor: The Definitive Book …

Moreover stock price would be more volatile because it should now rely on future rather than current prospects. The Intelligent Investor, by Benjamin Graham, is probably the most important and influential value investing book ever written even Warren Buffet described it as “by far the best book ever written on investing”.

https://www.amazon.com/Intelligent-Investor-Definitive-Investing-Essentials/dp/0060555661