The Intelligent Investor by Benjamin Graham. <a href="https://www.amazon.com/Intelligent-Investor-Definitive-Investing-Essentials/dp/0060555661/ref=sr_1_2?ie=UTF8&qid=1512554444&sr=8-2&keywords=the+intelligent+investor" rel="nofollow">https://www.amazon.com/Intelligent-Investor-Definitive-Inves...</a>