Mark Weber was born in 1951 in Portland, Oregon, where he was also raised. He studied history at the University of Illinois (Chicago), the University of Munich (Germany), and Portland State University, from where he received a bachelor's degree in history (with high honors). He then did graduate work in history at Indiana University (Bloomington), where he served as a history instructor and received a Master's degree in European history. Since 1995 Weber has been director of the Institute for Historical Review, which until the early 2000s was a leading revisionist history educational center and publisher based in southern California. For nine years he was editor of the IHR's former Journal of Historical Review. He is the author of many articles, reviews and essays dealing with historical, political and social issues, which have appeared in a variety of periodicals, and in a range of languages. In 1988 he testified during the second Zündel trial in Toronto as a recognized expert witness on Germany's wartime Jewish policy and the Holocaust issue. When the IHR ceased publishing new revisionist material in 2002, Weber redirected his focused on being a guest on numerous radio talk shows.