Calculus with Applications, Second Edition, provides the mathematical background for students majoring in business, management, or life and social sciences. Throughout the text, Karl Smith emphasizes and enhances students understanding of the modeling process and how mathematics is used in real world applications. Smith believes that model building is one of the most important skills that students taking a college mathematics course should learn. In his text he teaches modeling as a gradual process, with small steps and realistic examples. Each chapter concludes with A Modeling Application section. These open-ended problems require a mathematical model-building approach for their development, and provide students with either too much information, or leave something out. Thus, students develop skill in knowing what information to include, and what information to delete.