Joseph Stalin and the Great Purge of the 1930s

Arkady Gaidar’s books about changes in the Soviet Union
Bolshevik opposition to Joseph Stalin in the 1930s
Why Stalin removed Genrikh Yagoda from his NKVD post
Stalin’s role in the “Great Terror” of the 1930s
Why Stalin removed Nikolai Yezhov from his NKVD post