  We develop a new approach for the p-adic Simpson correspondence, closely
related to the original approach of Faltings, but also inspired by the work of
Ogus and Vologodsky on an analogue in characteristic p>0. The aim of this
article is to give an extensive overview of the theory that has been developped
in two articles, the first one (arXiv:1102.5466) devoted to the local aspects
and the second one (arXiv:1301.0904) to the global aspects.
