This volume addresses the increasingly typical nature of text and discourse: 'hybridity'. In an SFL perspective, this means that the cultural and situational contexts that tend to activate meanings and wordings must also be seen as being 'hybrid'.

1 Preliminaries: Hybridity & Systemic Functional Linguistics Donna R. Miller and Paul BayleyPart I Grammatical Hybridity2 On the (non)necessity of the hybrid category behavioural processDavid Banks, Universite de Bretagne Occidentale3 Hybridity in Transitivity: Phraseological and metaphorically derived processes in the system network for TRANSITIVITYGordon Tucker, Cardiff University (retired)4 Hybridity and Process Types Jorge Arus Hita, Universidad Complutense de MadridPart II Hybridity: Implications for pedagogy and professional practice5 Re-orienting semantic dispositions: The role of hybrid forms of language use in university learningCaroline Coffin, Open University6 Teaching through English: Maximal input in meaning makingJohn Polias, Lexis Education, and Gail Forey, Hong Kong Polytechnic University7 The multilayeredness of hybridity in the written stylistic analysis argumentAnne Isaac, University of Melbourne (retired)8 Activity types, discourse types and role types: Interactional hybridity in professional-client encounters Srikant Sarangi, Aalborg UniversityPart III Registerial -- and/or generic -- hybridity9 Hybridization: how language users graft new discourses on old root stockGeoff Thompson, University of Liverpool10 Registerial hybridity: Indeterminacy among fields of activityChristian M.I.M. Matthiessen, Macquarie University, and Kazuhiro Teruya, Hong Kong Polytechnic University11 Woolf's Lecture/Novel/Essay A Room of One's Own Carol Taylor Torsello, University of Padua (retired)12 Genre and register hybridisation in an historical textMichael Cummings, York University, Toronto13 Hybrid contexts and lexicogrammatical choices: Interpersonal uses of language in Peer Review Reports in Linguistics and Mathematics Akila Sellami-Baklouti, University of Sfax14 The Permeable Context of Institutional and Newspaper Discourse: A corpus-based functional case study of the European sovereign debt crisisSabrina Fusari, University of BolognaPart IV A Closing Statement15 In the Nature of Language: Reflections on permeability and hybridity Ruqaiya Hasan, Macquarie University (Emerita)