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J R Martin is Professor of Linguistics at the University of Sydney. His research interests include systemic theory, functional grammar, discourse semantics, register, genre, multimodality and critical discourse analysis, focussing on English and Tagalog - with special reference to the transdisciplinary fields of educational linguistics and social semiotics.

David Rose is a Research Fellow with the University of Sydney, currently coordinating a national research program in language and literacy for Indigenous Australians. This project, Learning to Read: Reading to Learn, works with schools across Australia, as well as Indigenous teacher training programs in University of Sydney and University of South Australia.