  In this paper the relationship between the classical description of the
resolution of quotient singularities and the string picture is reviewed in the
context of N=(2,2) superconformal field theories. A method for the analysis of
quotients locally of the form C^d/G where G is abelian is presented. Methods
derived from mirror symmetry are used to study the moduli space of the
blowing-up process. The case C^2/Z_n is analyzed explicitly. This is largely a
review paper to appear in "Essays on Mirror Manifolds, II".
