Ed van Thijn
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Van Thijn was also a prolific author, having written more than a dozen books since 1977 about politics, the history of the Jews during World War II, the history of socialism and several autobiographies. He was known for his abilities as a manager and ''policy wonk''. He continued to comment on political affairs until his retirement in 2017 and holds the distinction as the longest-serving Mayor of Amsterdam after World War II with 10 years. Provided by Wikipedia