Rafael Torres Sánchez mainly studies eighteenth-century Spanish warfare and its interconnection with the development of the state and its economy. He is the author of Constructing a Fiscal-Military State in Eighteenth-Century Spain (2015), El precio de la guerra: El estado fiscal-militar de Carlos III, 1779-1783 (2013), La llave de todos los tesoros: La Tesorería General de Carlos III (2012), and also collaborated with Stephen Conway on an edition of The Spending of the States: Military Expenditure during the Long Eighteenth Century: Patterns, Organisation and Consequences, 1650-1815 (2011). His work also includes War, State and Development: Fiscal-Military States in the Eighteenth Century (2007). His website can be found at http://www.unav.edu/centro/contractorstate/