Rudy B. Andeweg & Robert Elgie 
Oxford Handbook of Political Executives [PDF ebook] 

Political executives have been at the centre of public and scholarly attention long before the inception of modern political science. In the contemporary world, political executives have come to dominate the political stage in many democratic and autocratic regimes. The Oxford Handbook of Political Executives marks the definitive reference work in this field. Edited and written by a team of word-class scholars, it combines substantive stocktaking with setting new agendas for the next generation of political executive research.