My question concerns epistemology and "post-modernism". Why do philosophical books on epistemology fail to discuss the problem of how one knows what a text means? Postmodernism have raised various questions about the possibility of how one knows what a text means, but the only books on epistemology I've seen talk about things like foundationalism, coherence, Gettier counter-examples, etc, but miss talking about Derrida's deconstructionism, and the positions of people like Fish and Foucault. Furthermore, who are the philosophers working on epistemology "answers" to postmodern thinkers? Is there a must read rejection of postmodern scepticism? I am aware of important critiques amongst Christian thinkers (e.g. D.A. Carson's "The Gagging of God") but I suspect there must be more philosophical responses.