The popular encyclopedia "Who's Who in Orthopedics" (by Seyd Behrooz MOSTOFI) contains short biographies of famous orthopedic traumatologists throughout the history of the development of traumatology and orthopedics in the world. The biographies are arranged in alphabetical order and begin with a description of the life of the well-known orthopedist Robert ADAMS (1791-1875), a professor at the University of Dublin who had scientific publications on rheumatoid arthritis. The encyclopedia has published biographies and photographs of 365 orthopedic traumatologists. From Russian scientists, the encyclopedia includes biographies of the genius Nikolai Ivanovich PIROGOV (1910-1881), Gabriel Abramovich ILIZAROV (1921-1992) and Vladimir Mikhailovich BEKHTEREV (1857-1927), who is not an orthopedic traumatologist, but. being an eminent neurologist and psychologist, he published in 1892 an article on ankylyzing spondylarthritis (AS). For some reason, this encyclopedia did not include the professor of orthopedics and trematology Konstantin Mitrofanovich SIVASH (1924-1989) - the inventor (1959) of the world's unique all-metal total hip joint endoprosthesis.