Designed for first-time readers of the subject, this stimulating introduction offers a historical exposition of differing views on the philosophy of science. With concise profiles presenting the major philosophers whose contributions are discussed in this book, Losee explores the long-argued questions raised by philosophers and scientists about the proper evaluation of science. This new edition incorporates contemporary developments in the discipline, including recent work on theory-appraisal, experimental practice, the debate over scientific realism, and the philosophy of biology. Taking a balanced and informative approach, this work is the ideal introductory volume.