Mathematics Without Borders
By Olli Lehto
Professor Olli Lehto, who was the Secretary of the International Mathematical Union in the eighties, wrote a book on the History of IMU. This is an invaluable contribution in many ways: besides being a register of IMU, up to now, it is also a relevant document in explaining the scenario of cooperation in the mathematics in the turn of this century and how the Union was created. It helps to promote IMU and to make it more visible to present day mathematicians.