Professor Hammer teaches a variety of courses on British history during the late medieval (14th and 15th centuries), Tudor (1485-1603) and Stuart (1603-1707) periods. He completed his B.A. and M.A. at the University of Auckland in New Zealand and his Ph.D. at the University of Cambridge. He subsequently taught at the University of New England and the University of Adelaide in Australia and at the University of St Andrews in Scotland. He has taught at CU Boulder since 2008. His publications include The Polarisation of Elizabethan Politics: the Political Career of Robert Devereux, 2nd Earl of Essex, 1585-1597 (Cambridge University Press, 1999) and Elizabeth’s wars: war, government and society in Tudor England, 1544-1604 (Palgrave Macmillan, 2003). He also edited Warfare in Early Modern Europe, 1450-1660 (Ashgate, 2007) and has published numerous articles and essays. He is a Fellow of the Royal Historical Society and his awards and distinctions include an Andrew W. Mellon Foundation Research Fellowship, a Fletcher Jones Foundation Fellowship, and a National Endowment for the Humanities Fellowship. He is currently completing a book entitled The Politics of Treason in the Age of Shakespeare.