The world is waging war on corruption. Accompanying this war, there is also a growing academic interest in corruption. This research, however, has tended to operate with a nearly undisputed understanding of what corruption is and how to fight it. It has refrained from theorizing corruption, possibly as a consequence of the perceived urgency involved in identifying, raising awareness about and fighting corruption. This special issue of ephemera seeks to re-emphasize the relevance and importance of theorizing corruption.