 We will look at several attempts to analyse the distinction between intrinsic and extrinsic properties. One reason to attempt such an analysis is that the orientating characterisations of intrinsicality discussed in section  1  and sections  2.2  –  2.4  are all to some degree circular. (Cf Lewis 1983a and Yablo 1999.) For example, a property \(p\) whose ascription to a thing \(x\) is about \(x\) is intrinsic only if it is about how \(x\) is intrinsically; \(p\) is not intrinsic if the ascription of \(p\) to \(x\) is about how \(x\) is extrinsically. Similarly, a property \(p\) that is had by \(x\) in virtue of how \(x\) is is intrinsic only if \(x\) has \(p\) in virtue of how \(x\) is intrinsically; \(p\) need not be intrinsic if \(x\) has \(p\) in virtue of how \(x\) is extrinsically.