Frank Arnau (March 9, 1894 – February 11, 1976) was the pseudonym of a German crime fiction writer, born as Heinrich Schmitt.
With the political ascent of Hitler, this avowed opponent of National Socialism emigrated in 1933, first to France, then in 1939 to Brazil, where he lived until 1955.
Arnau wrote over a hundred books and was president of the German league for human rights.
He wrote stage plays, novels, detective stories and critical studies about society and the legal system.
3000 Jahre Betrug mit Antiquitäten (translated in English as The Art of the Faker - 3,000 Years of Deception).