Edmund Wilson investigates the intellectual origins and historical progression of the socialist movement, tracing the evolution of revolutionary thought from the French Revolution to the Bolshevik seizure of power in 1917. Wilson, a prominent literary critic and social commentator, employs a biographical and narrative approach to examine the lives and philosophies of key figures who shaped modern political history. By synthesizing historical events with the personal development of these thinkers, he constructs a framework that links the utopian ideals of the early 19th century to the pragmatic, often brutal, realities of the Russian Revolution.

This work is widely regarded as a classic of intellectual history, noted for its narrative flair and its ability to humanize complex political theories. The text serves as a foundational study for those interested in the intersection of biography and the history of ideas, maintaining its relevance through its rigorous examination of revolutionary psychology.