The present study examines the promotion of Holocaust denial since 1945 with a particular focus on the works of David Irving. It specifically examines the contribution to Holocaust denial of Irving's ideological beliefs as expounded in his published works and his many public speeches. My thesis also presents evidence and an argument about Irving's crusade to promote Holocaust denial. This thesis will chart a changing consciousness about the established history of the Holocaust, in which conventional historical discussion is gradually losing ground. Deborah Lipstadt argues that these attacks on history and knowledge have the potential to alter the way established truth is transmitted from generation to generation. Lipstadt points out that according to some post-structuralist scholars no fact, no event, and no aspect of history any longer has any fixed meaning or content. Any truth can be retold. Any fact can be re-cast. Lipstadt defines this as bigotry. I tend to agree. This thesis will examine the genesis and context of holocaust denial. Here I shall evaluate significant contemporary denial writings and offer some perspectives about the controversy; I will consider general aspects of David Irving's background, personality and the major steps in his intellectual development; Irving will be examined as an author of historical books and an historian of the Second World War; examine Irving as a Holocaust denier; examine both Irving's political agenda, his propensity to associate with extreme right groups and individual and his alleged capacity to incite violence.