Part one of this book offers theoretical reflections on the topic of how to govern, steer, or otherwise intervene in practices for the sake of fostering sustainability. The present chapter tackles this task directly. It elaborates an intuitive notion of governance and embeds this notion in a practice-theoretical social ontology. The resulting analysis of governance as a denizen of the plenum of practices and materiality then sets the terms for considering how society might be induced, through governance, to develop more sustainably.