Among them was The Relative Strength Concept of Common Stock Price Forecasting by Robert A. Levy, which helped me banish the “buy weakness” mentality and was instrumental in my new approach of focusing on strength. Then there was Edward S. Jensen’s Stock Market Blueprints, published in 1967. Jensen’s book included his blueprints for each type of stock, which were based on criteria such as income, growth, cyclical growth, and dynamic growth.
