Halliday's Introduction to Functional Grammar explains the basic principles of this key form of linguistic analysis, enabling you to apply these in any context by engaging with grammar through discourse. Revised and updated thoroughly in view of the recent new uses of the theory, this fourth edition focuses on the following features: -the ecology of grammar illustrating systematically how each major system serves to realise a semantic system -a systematic indexing and classification of examples, using more corpus examples, indicating how the use of the corpus varies according to the register -clearer links to related material, offering you the opportunity for further study and showing you where more original research is needed. Halliday's Introduction to Functional Grammar, Fourth Edition is now accompanied by extended textual and audio examples at www.hodderplus.com/linguistics, which provide further guidance into the discourse uses of the grammatical categories found within the book. Halliday's Introduction to Functional Grammar, Fourth Edition is the standard reference text for systemic functional linguistics and an ideal introduction for students and scholars interested in the relation between grammar, meaning and discourse. M.A.K. Halliday is Emeritus Professor of Linguistics at the University of Sydney, Australia. Christian Matthiessen is Chair Professor of the Department of English and Associate Dean of the Faculty of Humanities at Hong Kong Polytechnic University. [ADD HODDERPLUS BOX] Resources supporting this book are available online at www.hodderplus.com/linguistics. These resources include: -answers to exercises within the book -audio files of examples [ADD ISBN]