Lukacs’s book "The Hitler of History" (1997), a prosopography of the historians who have written biographies of Hitler, is in part a critique of Irving’s work. Lukacs considered Irving to be sympathetic to the Nazis. In turn, Irving has engaged in what many consider to be antisemitic and racist attacks against Lukacs. Because Lukacs' mother was Jewish, Irving disparagingly refers to him as "a Jewish historian". In letters of 25 October and 28 October 1997, Irving threatened to sue Lukacs for libel if he published his book ("The Hitler of History") without removing certain passages which were highly critical of Irving's work. The American edition of "The Hitler of History" was published in 1997 with the passages included, but because of Irving's legal threats no British edition of "The Hitler of History" was published until 2001. As a result of Irving's threat of legal action under British libel laws, when the British edition was finally published the passages containing the criticism of Irving's historical methods were expunged by the publisher.