Otto Neurath (1882–1945) was an Austrian-born philosopher of science, sociologist and political economist, and one of the most multi-faceted and creative thinkers in the Vienna Circle. Forced into exile by fascism, he was part of the intellectual exodus from Central Europe. After an adventurous escape to England and internment as an 'enemy alien', he enthusiastically adapted to British culture, working on documentary films and publications for the war effort using the Isotype method of visualization. He treasured the British habit of 'muddling through', and debated planning and economics with fellow Central European émigrés, Friedrich Hayek, Karl Mannheim and Karl Popper. Based on new archival research, this book explores a little-known period of Neurath's rich and fascinating life, weaving together biographical, historical, and philosophical strands that reflect the cross-cultural currents of twentieth-century intellectual history through the lens of Neurath's contribution.