 Again, despite immense differences between them, numerous theories of metaphor have also converged on the idea that interpreting metaphor involves imagination (see the entry on  metaphor).  The first family of theories focus on imagination’s role in pretense. As mentioned earlier, Walton (1990) takes metaphors to be props in momentary games of make-believe. Walton (1993, 2000) and David Hills (1997) further develop this idea. (Importantly, Walton (1993) notes that interpretation of a metaphor may not involve actual imaginings, but only the recognition of the type of imaginings prescribed.) Andy Egan (2008b) extends the idea to account for idioms. These theories remain controversial: in particular, Camp (2009) and Catherine Wearing (2011) have offered forceful criticisms. The second family of theories focus on imagination’s role in providing novel perspectives. While Camp (2009) criticizes the first family of theories, she also acknowledges a role for imagination. On her account, pretense and metaphor typically involve distinct types of imaginings: pretense-imaginings allow one to access counterfactual content, but metaphor-imaginings allow one to re-interpret actual content from a novel perspective. Indeed Camp (2007) argues that the kind of imagination involved in interpreting metaphors is also used to interpret similes and juxtapositions. The third family of theories focus on imagination’s role in providing mental images. Paul Ricoeur (1978), Richard Moran (1989), and Robyn Carston (2010) all propose theories on which mental imagery plays an important role in processing metaphors. Outside of philosophy of language, James Grant (2011) argues that metaphors are prevalent in art criticism because they prompt readers’ imaginings.