Communication and media theory and methods: David has written widely on theoretical and methodological issues relating to Communication and Media studies. He is the co-author of a leading international book on media and cultural research methods, which has recently been published in its second edition.
Journalism, News Production and Public Relations: David has conducted several major studies into journalism and public relations. These studies have revealed the complex, context-dependent nature of relations between journalists and their sources, but also the structural limitations imposed upon and evident within the performance of the news media.
Political Communication: David has had a central role in all of the media election investigations conducted by the Loughborough Communication Research Centre since 1992. However, his interests in political communication also extend beyond the electoral sphere to include the analysis of the promotional activities of the British State, the mediation of public policy and the increased blurring of the distinction between statutory and voluntary sectors.
Media History: In his research, David has argued the need for historical perspective in analysing the dynamics of media production and consumption. This analytical approach finds its fullest expression in his most recent book on British news media coverage of the Spanish Civil War.