His books on Cambodian history include "How Pol Pot Came to Power: Colonialism, Nationalism and Communism in Cambodia, 1930–1975" (first published in 1985), and "Genocide and Resistance in Southeast Asia: Documentation, Denial and Justice in Cambodia and East Timor" (Transaction, 2007).
Среди книг Кирнана по истории Камбоджи наиболее известны: "How Pol Pot Came to Power: Colonialism, Nationalism and Communism in Cambodia, 1930–1975" (впервые опубликована в 1985), и "Genocide and Resistance in Southeast Asia: Documentation, Denial and Justice in Cambodia and East Timor" (2007).