Professor Ken Hyland 
Discourse Studies Reader [PDF ebook] 
Essential Excerpts

Since 2005, the Continuum Discourse series, under the editorship of Professor Ken Hyland, has published some of the most cutting-edge work in the field of discourse analysis.This edited collection offers a showcase of the work produced by its authors and reads as fully-functional book in its own right. The work of Paul Baker, Frances Christie and Greg Myers features, amongst others.
With an introduction by Professor Hyland, the chapters are organized thematically to provide a look a research methods, examine at the various types of institutional discourses covered by the series, and finally, a look to arguably the future of the field – electronic discourses in an electronic medium, for example Twitter, SMS and Blogs.
This is an essential purchase for those involved in discourse analysis in any capacity.