This textbook explores the building of financial models for financial management and planning. It offers a comprehensive overview of financial models and their role in corporate financial planning. The authors help readers learn how to develop and use computer-based models for planning investment and financing decisions for a firm. They emphasize modeling problems related to corporate financial management as well as provide material on security markets. The authors also include instructions on how to download a limited version of the Monte Carlo simulation software @Risk for free. A solutions manual and PowerPoint slides are available for qualifying instructors.