Martyn Hammersley is Professor of Educational and Social Research at The Open University. He has carried out research in the sociology of education and the sociology of the media. However, much of his work has been concerned with the methodological issues surrounding social enquiry. He has written several books, including: Reading Ethnographic Research (Longman 1991); What's Wrong with Ethnography? (Routledge 1992); The Politics of Social Research (Sage 1995); Taking Sides in Social Research (Routledge, 1999); Educational Research, Policymaking and Practice (Paul Chapman, 2002), Questioning Qualitative Inquiry (Sage 2008), Methodology, Who Needs It? (Sage, 2011), and What is Qualitative… Research? (Continuum/Bloomsbury, 2013)