The article "Principles of Investments" focuses on teaching students about asset allocation and practical investment strategies. It covers different types of securities and financial markets, as well as how trading works. The course includes a web-based portfolio simulation where students can practice buying and selling stocks and mutual funds with a hypothetical $100,000 brokerage account. The material also addresses changes in market structure and trading technology, with exercises and problems to reinforce learning. Key topics include risk and return, diversification, bond and equity valuation, and portfolio performance evaluation.