Teaching and Writing is an authoritative introduction provides a highly readable and up-to-date guide to the major themes and developments in current writing theory, research and teaching. It is designed for anyone looking for an overview of current views on writing and the ways theory has been translated into teaching and research.
Ken Hyland is Professor of Applied Linguistics in Education at the University of East Anglia. He is a Foundation Fellow of the Hong Kong Academy of the Humanities and an Honorary Professor at Warwick University, Jilin University and Hong Kong University.
This was a comprehensive overview of much of the research (largely, but not exclusively, in linguistics) that's been conducted into writing and writing processes. In my mind, this is more useful to have as a reference book than as a book to read since the high-level of the overview (despite the useful case studies and examples) really prevents the book from having as much meat is it could. That said, it's truly comprehensive and the described changes to this edition make it much better than the prior one.