Kate KitagawaDR. KATE KITAGAWA is one of the world's leading experts on the history of mathematics. She earned a Ph.D. from Princeton University, taught history at Harvard University and conducted research in the UK, Germany and South Africa. Her first book was anational bestseller in Japan, and she has been named one of the 100 most influential people in Japan by Nikkei Business. She is currently Director of the Space Education Office at the Japan Aerospace Exploration Agency (JAXA). Read More Read Less