The model-theoretic structure (R(an),exp) is investigated as a special case of an expansion of the field of reals by certain families of C-infinity-functions. In particular, we use methods of Wilkie to show that (R(an),exp) is (finitely) model complete and O-minimal. We also prove analytic cell decomposition and the fact that every definable unary function is ultimately bounded by an iterated exponential function.