  Multisummation provides a transparent description of Stokes matrices which is
reviewed here together with some applications. Examples of moduli spaces for
Stokes matrices are computed and discussed. A moduli space for a third
Painlev\'e equation is made explicit. It is shown that the monodromy identity,
relating the topological monodromy and Stokes matrices, is useful for some
quantum differential equations and for confluent generalized hypergeometric
equations.
