the validity of the factual, documentary record, and so reframe explanations and perceptions of the discussed historical event, to deceive the reader, the listener, and the viewer; therefore, historical negationism functions as a technique of propaganda. Rather than submit their works for peer review, negationist historians rewrite history and use logical fallacies to construct arguments that will obtain the desired results, a "revised history" that supports an agenda – political, ideological, religious, etc. In the practice of historiography, the British historian Richard J. Evans describes the technical differences, between professional historians and negationist historians, commenting: "Reputable and professional historians do not suppress parts of quotations from documents that go against their own case, but take them into account, and, if necessary, amend their own case, accordingly. They do not present, as genuine, documents which they know to be forged, just because these forgeries happen to back up what they are saying. They do not invent ingenious, but implausible, and utterly unsupported reasons for distrusting genuine documents, because these documents run counter to their arguments; again, they amend their arguments, if this is the case, or, indeed, abandon them altogether. They do not consciously attribute their own conclusions to books and other sources, which, in fact, on closer inspection, actually say the opposite. They do not eagerly seek out the highest possible figures in a series of statistics, independently of their reliability, or otherwise, simply because they want, for whatever reason, to maximize the figure in question, but rather, they assess all the available figures, as impartially as possible, to arrive at a number that will withstand the critical scrutiny of others. They do not knowingly mistranslate sources in foreign languages to make them more serviceable to themselves. They do not willfully invent words, phrases, quotations, incidents and events, for which there is no historical evidence, to make their arguments more plausible." Deception Deception includes falsifying information, obscuring the truth, and lying to manipulate public opinion about the historical event discussed in the revised history. The negationist historian applies the techniques of deception to achieve either a political or an ideological goal, or both. The field of history distinguishes among history books based upon credible, verifiable sources, which were peer-reviewed before publication; and deceptive history books, based upon unreliable sources, which were not submitted for peer review. The distinction among types of history books rests upon the research techniques used in