Opening the 9-volume-series Handbooks of Pragmatics, this handbook provides a comprehensive overview of the foundations of pragmatics. It covers the central theories and approaches as well as key concepts and topics characteristic of mainstream pragmatics, i.e. the traditional and most widespread approach to the ways and means of using language in authentic social contexts. The in-depth articles provide reliable orientational overviews useful to researchers, students, and teachers. They are both state of the art reviews of their topics and critical evaluations in the light of subsequent developments. Topics are thus considered within their scholarly context and also critically evaluated from current perspectives. The five major sections of the handbook are dedicated to the Conceptual and Theoretical Foundations (with a historiographic overview of the establishment and subsequent development of pragmatics), Key Topics (investigating indexicality, reference and other concepts that were the first to make their way from grammar into pragmatics and mainstream notions like speech acts, types of inference), the Place of Pragmatics in the Description of Discourse (delimiting pragmatics from grammar, semantics, prosody, literary criticism), and Methods and Tools.