Abstract
In this series of papers we accumulate recommendations on various aspects of event preparation, organization and management for the International Olympiad in Informatics (IOI) Host country. Although the IOI has some very specific events, like quarantine, the contest and translation sessions, our recommendations are not limited to only an IOI style event. However the main goal of this series is to distribute best practices for an IOI. Part I of this publication covers general aspects of an IOI and parts II and III cover scientific and technical aspects.