‘What is a change?’ discusses events and processes where change is involved. An event may involve just a single change, whereas a process suggests a complex series of more than one change in a particular order. A change could be a gain or loss of a property, the coming into or going out of existence of something, or a change within one property. The Aristotelian view of there being a subject of change is endurantism where incompatible properties are borne at different times. In contrast, perdurantists believe in temporal parts, which have the properties pure and simple. But how do these distinct parts connect? Processes seem to come in integrated, continuous wholes.