ผู้เขียน: Per Ledin

David Machin is Lecturer in the Department of Media and Communication at the University of Leicester. He is co-editor of the journal Social Semiotics and has written five other books, including Introduction to Multimodal Analysis (Hodder, 2007), and News Production (Routledge, 2006), as well as co-editing the Media Audiences major work with Barrie Gunter.