 This entry will focus exclusively on the contents of perceptual experiences. It is definitional of experience, as the term is used here, that they have some phenomenal character, or more briefly, some phenomenology. The phenomenology of an experience is what it is like for the subject to have it. At any given waking moment, one normally has experiences in some (perhaps all) of the five sense modalities, along with proprioceptive experience of some sort. Like occurrent emotions and background moods, these contribute to one’s overall experience. Each of five sense modalities seems to be accompanied by a distinctive kind of phenomenology. Sometimes the boundaries between them can be hard to draw, for example between olfactory and gustatory phenomenology, kinesthetic experience and haptic-tactile experience (that is, tactile experiences involving movement rather than just pressure sensation), and perhaps, in some cases, between the latter two and visual experience (on the last point see Press et al. 2004, Kennett et al. 2001, Fotopoulou et al. 2009; on distinguishing the senses, see Stokes, Matthen and Briggs 2014, Wilson and Macpherson 2018). Despite these difficulties, some rough distinctions can be drawn: the difference between seeing red and seeing blue is not a difference in how things sound, or in how one’s body feels.