P.D. Smith is an independent researcher and writer. He has taught at University College London where he is an Honorary Research Fellow in the Science and Technology Studies Department. He regularly reviews books for the "Guardian", and has written for the "Independent", the "Financial Times" and the "Times Literary Supplement" among other journals. His books include "Metaphor and Materiality: German Literature and the World-View of Science 1780-1955" and a biography of Einstein. He lives in Hampshire.