A little video in which I explain how I understand (countable!) discourses...
References:
Fairclough, N., Mulderrig, J. & Wodak, R. 2011, 'Critical Discourse Analysis'. in TA van Dijk (ed.), Discourse Studies. A multidisciplinary Introduction. Sage, London, pp. 357-378.
Locke, T. 2004. Critical Discourse Analysis. London: Continuum.