The reference book contains information about the life and scientific activities of over 1,500 scientists - mathematicians and mechanics of the past and present. A chronology of the most important events in the field of mathematics and mechanics and a list of literature are given, which includes works on the history of mathematics and mechanics, monographs and articles on the work of scientists, as well as the most significant collected works. For scientists - mathematicians, mechanics and historians of science, teachers of higher and secondary schools, graduate students and students, as well as for readers interested in the history of science and technology.