Science aims to describe reality, to predict the future and to supply us with technology. But it also aims to explain and understand the world. What does it take to explain a phenomenon? Why are some explanations better than others? How do explanation and understanding relate to each other?In this thorough and clearly written introduction, Arnon Levy explores philosophical theories of explanation and understanding which can help answer these questions. Highlighted themes include:What are explanations and what makes some explanations better than others?Empiricism about explanation: Hempel's Deductive-Nomological model and its discontentsCausation and Causal theories of explanation: From Lewis, through Woodward to StrevensExplanatory models, the role idealization and abstraction in generating understandingMechanistic explanation: What is a mechanism? What kind of understanding do mechanistic models supply?Mathematical and other non-causal explanationsUnderstanding and its relation to explanation.Arguments are fleshed out with examples, chapter summaries, a glossary of key terms, and accompanying illustrations. As such, Explanation and Understanding is suitable for independent study or as a companion to classes in philosophy of science, metaphysics and other areas of philosophy in which explanation looms large.