 This article is divided into a number of sections. Section 2 looks more closely at what exactly temporal parts are supposed to be, and at what sorts of things are supposed to have them. Sections  3,  4 and  5  look at a range of arguments in favour of believing in temporal parts, and at the responses of those who reject temporal parts.  Section 6  discusses connections between debate about temporal parts, and debate about the nature of time more generally.  Section 7  considers whether physics can teach us anything about temporal parts.  Section 8  discusses a question internal to temporal-parts theories: what relationship is there between the different temporal parts of a single object?  Finally,  section 9  touches on special concerns about the persistence of people through time.