One of the primary purposes of any model is to build intuition and generate insights. Typically, a model is developed to be able to better understand phenomena that are otherwise difficult to comprehend. Models can also help in verifying the correctness of an intuition or judgment. In spite of the fact that many educators and practitioners recognize the intuition-building power of simple models, this is the first book in the field that uses the power of the basic models and principles to provide students and managers with an "intuitive understanding" of operations management.