 Epistemologically, realism is committed to the idea that theoretical claims (interpreted literally as describing a mind-independent reality) constitute knowledge of the world. This contrasts with skeptical positions which, even if they grant the metaphysical and semantic dimensions of realism, doubt that scientific investigation is epistemologically powerful enough to yield such knowledge, or, as in the case of some antirealist positions, insist that it is only powerful enough to yield knowledge regarding observables. The epistemological dimension of realism, though shared by realists generally, is sometimes described more specifically in contrary ways. For example, while many realists subscribe to the truth (or approximate truth) of theories understood in terms of some version of the correspondence theory of truth (as suggested by Fine 1986a and contested by Ellis 1988), some prefer a truthmaker account (Asay 2013) or a deflationary account of truth (Giere 1988: 82; Devitt 2005; Leeds 2007). Though most realists marry their position to the successful reference of theoretical terms, including those for unobservable entities (Boyd 1983, and as described by Laudan 1981), some deny that this is a requirement (Cruse &amp; Papineau 2002; Papineau 2010). Amidst these differences, however, a general recipe for realism is widely shared: our best scientific theories give true or approximately true descriptions of observable and unobservable aspects of a mind-independent world.