This section provides an introduction to analytic philosophy. It defines analytic philosophy as the leading approach to philosophy in English-speaking countries in the 20th century. The key characteristics of analytic philosophy are its emphasis on analysis through logical and linguistic methods, and its focus on constructing philosophical reflections that are rational, logically consistent, and clearly argued. The section also lists five phases in the development of analytic philosophy: logical atomism, logical positivism, linguistic philosophy, and late 20th century analytic philosophy.