In 2005, he received the Italian literary award, Feudo Di Maida Prize (in full, Premio Letterario Internazionale Feudo Di Maida), for his book Il nuovo ordine mediterraneo (published by Bollati Boringhieri, Turin). The book, a history of Italy's fascist imperial ambitions in the 1940s, was re-published by Cambridge University Press under the title Fascism’s European Empire (Cambridge University Press, 2006). It has been described as an "illuminating appraisal of Fascist Italy's ambitions" and "pioneering".
Night on Earth – Humanitarian Organizations’ Relief and Rehabilitation Programmes on Behalf of Civilian Populations (1918–1939) (Cambridge University Press, 2021)
Humanitarian Photography: A History (Cambridge University Press, 2015)
Against Massacre: Humanitarian Interventions in the Ottoman Empire (1815–1914) (Princeton University Press, 2011)
Fascism’s European Empire (Cambridge University Press, 2006)