Overview: Works and ephemera of the Russian revolutionary and Soviet leader Leon Trotsky collected by his secretary Jean van Heijenoort.

Overview: Unpublished exhibits from the Dewey Commission of Inquiry into charges made against Leon Trotsky in the Moscow trials.

Overview: Papers of Russian revolutionary and Soviet leader Leon Trotsky from his period of exile in Coyoacán, Mexico.

Overview: Letters of Russian Communist theorist and agitator Leon Trotsky to Cass Canfield at Harper and Brothers who edited his book Stalin: an appraisal of the man and his influence.

Overview: Letters of Russian revolutionary Leon Trotsky to his secretary Sara Weber.

Overview: Papers of Russian revolutionary and Soviet leader Leon Trotsky including correspondence from his years in the Soviet Union and writings.

Overview: English edition and translation of Leon Trotsky's Stalin by Charles Malamuth.

Summary: Includes clippings, manuscript, typescript, and printed material.

Chiefly material for his Problems of the Chinese revolution, including manuscript and typescript drafts; and material concerning the Commission of inquiry into the charges made against Leon Trotsky in the Moscow trials.