Ernst Witt was an exceptionally versatile, imaginative and original mathematician. He has been the development of mathematics in this century decisive impetus. One of his great strengths was, in short, elegant and economical write mathematics, and carefully draw the attention of the reader to the essentials for understanding. These collected essays contain all of his works, some of his unpublished manuscripts, a detailed curriculum vitae, facsimiles and photos. Detailed comments by various authors (in English) light Witt's efforts today. The book is a treasure trove for mathematicians who want to learn and updates for those who are interested in the history of mathematics.
The editor (Witt-student) is president of the German Mathematical Society.