Katja Hoyer is a German-British historian and writer. She is a Visiting Research Fellow at King's College London and a Fellow of the Royal Historical Society. Her debut book Blood and Iron was well received by academics and critics. Her second book Beyond the Wall was a Sunday Times bestseller and long-listed for the prestigious Baillie Gifford Prize. Her latest book Weimar is out now and has also become an international bestseller.

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Once described by the Sunday Times as 'Britain's favourite German historian', Katja also works as a broadcaster and commentator on all things German. She has presented radio documentaries for the BBC and is currently a columnist for the Berliner Zeitung. She is a regular contributor to Bloomberg, The Guardian, The Daily Telegraph and UnHerd and has also worked as a columnist for The Washington Post. She occasionally writes for a range of other newspapers such as The Financial Times, The Times, The Spectator and Die Welt on current political affairs in Germany and Europe as well as history and books. 

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Katja is an accomplished speaker and has contributed to TV productions for Sky History, ITV, Channel 4 and international broadcasters in on- and off-screen roles. She has advised public and private institutions on topical issues in Germany. Katja was born in Germany and now lives in the UK.