 The distinction between mental capacities and inferential methods is a natural starting point for addressing the Access Question. The mental capacities that are most discussed in the epistemology of modality are: conceivability, understanding, imagination, intuition, and perception. The inferential methods are: deduction, induction, and abduction. We will see how those notions are spelled out more precisely in the different theories. Mental capacities and/or inferential methods that are central to a theory of modal knowledge offer a main criterion for classifying theories. Furthermore, theories of modal knowledge need not restrict themselves to adopting only one mental capacity or inferential method. In fact, they sometimes combine them in various ways.