New in paperback. Hardcover was published in 2019. Starting with a definition of the various types of implicatures in Gricean, neo-Gricean and post-Gricean pragmatics, the book covers many important questions for current pragmatic theories, namely: the distinction between explicit and implicit forms of pragmatic enrichment, the criteria for drawing a line between semantic and pragmatic meaning, the relations between the structure of language (syntax) and its use (pragmatics), the social and cognitive factors underlying the use of implicatures by native speakers, and the factors influencing their acquisition for children and second language learners.