Mike Riccardi provides a brief introductory article on presuppositional apologetics:
a key distinctive of presuppositional apologetics is that the apologist must presuppose (hence the name) the truth of the Bible and the Christian worldview. We should not, even for the sake of argument, concede that reality might be any other way than it actually is. This too sets presuppositionalism apart from other schools of apologetics, which seek to find some neutral common ground with an unbeliever by which to reasonably evaluate Christian claims.
Read the whole thing here.
