  In this note we reformulate topological string theory using supermanifolds
and supermoduli spaces, following the approach worked out by Witten for
superstring perturbation theory in arXiv:1209.5461. We intend to make the
construction geometrical in nature, by using supergeometry techniques
extensively. The goal is to establish the foundation of studying topological
string amplitudes in terms of integration over appropriate supermoduli spaces.
