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Portrait image of Balduin Groller

Sample of authors

Groller, Balduin

At the end of the 19th century and early in the 20th century, Austrian author Adalbert Goldscheider wrote a large number or novels, short stories and comedies under the pseudonym Balduin Groller. The books that received the most attention were the crime short stories about Dagobert Trostler, known as ‘The Sherlock Holmes of Vienna’: In Queen’s Quorum (1951), Ellery Queen lists Trostler as one of t...

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Portrait image of Leif G.W. Persson Photo: Ola Erikson / Forflex

Sample of authors

Persson, Leif G.W.

Leif Gustav Willy Persson is a Swedish author and criminologist who previously worked for the Swedish Police and the Ministry of Justice. Persson was appointed Professor of Criminology at the Swedish National Police Academy in 1991, a post he threatened to resign from in 2008. He was persuaded to continue working until 2012 when he retired at the age of 67. Persson has also participated in the...

Further reading