This alphabetically organized, illustrated biographical dictionary covers over 1300 key scientists from more than 38 countries whose work has helped shape modern science. Fields covered include physics, chemistry, biology, geology, astronomy, mathematics, medicine, meteorology and technology - and special attention is paid to those pioneer women whose achievements and example opened the way to scientific careers for their fellow women. Interspersed with illustrations in the form of diagrams, maps and tables, and with special panel features, this book is a clear and accessible guide to the world's prominent scientific personalities.