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Pyotr Mikhaylovich Yershov ( Russian: Пётр Миха́йлович Ершо́в, 1910–1994) was a Soviet theater director and art theoretician, most famous for his textbooks on directing and works on Stanislavski's system.

He wrote Directing as a Practical Psychology, with forewords by Oleg Yefremov and P.V. Simonov, 1972, and Technology of an Actor in 1959, that is often recommended course material in Russian and American theater schools.

• (in Russian) Biography and photos
• (in Russian) Full bibliography of Pyotr Mikhailovich Yershov's works