Violeta Ruiz Almendral (Madrid, 1975) is Associate Professor (Profesora Titular) at the Universidad Carlos III de Madrid, where she teaches Tax Law, as well as a number of courses on International and European taxation, Sub-national taxation and Public spending (Budget Law). She has been a Visiting Fellow at the Westfälische Wilhelms-Universität zu Münster (Münster), 2003/2004, the International Bureau for Fiscal Documentation (Amsterdam, 2005), the James Rogers College of Law (Tucson, 2006), the European University Institute (Florence, 2008) and the London School of Economics (London, 2010).