Philipp Blom (Hamburg, 1970) was trained as a historian in Vienna and Oxford and a regular contributor to magazines and newspapers in Europe and the United States. Anagram has published three splendid works: Encyclopédie. The triumph of reason in unreasonable times, years of vertigo. Culture and Change in the West, 1900-1914 and dangerous people. Forgotten Radicalism of the European Enlightenment.