Here are some of his notable works:
Books:
* "Stalin's Terror in the 1930s: The Extraordinary Commissions for Combating Counterrevolution" (1994): This book analyzes the role of the extraordinary commissions in the Great Purge, providing a detailed account of the repression and its impact.
* "The History of the USSR: 1917-1991" (2005): This comprehensive textbook offers a critical analysis of the Soviet period, exploring its political, social, and economic developments.
* "The Great Terror: The Soviet Union in the 1930s" (2012): This book provides a deeper exploration of the Great Purge, analyzing its causes, execution, and consequences.
* "The KGB: The Inside Story" (2017): This book delves into the history of the Soviet and Russian intelligence agency, exploring its structure, operations, and influence.
Articles and Essays:
Pipiya has also authored numerous articles and essays on various aspects of Soviet history, including:
* "The Role of the NKVD in the Great Purge" (1996)
* "The Stalinist Gulag: A History of Repression" (2001)
* "The Legacy of the Soviet Era" (2015)
His work is known for its meticulous research, critical analysis, and insightful interpretations. Pipiya's books and articles have been translated into several languages and are considered essential reading for anyone interested in the history of the Soviet Union.