  Geometric quantization is an attempt at using the differential-geometric
ingredients of classical phase spaces regarded as symplectic manifolds in order
to define a corresponding quantum theory. Generally, the process of geometric
quantization is applicable to other symplectic manifolds, not only cotangent
spaces. The resulting formalism provides a way of looking at quantum theory
that is distinct from conventional approaches to the subject, e.g., the Dirac
bra-ket formalism. In particular, such familiar features as the quantization of
spin, the canonical quantization of position and momentum, and the
Schr\"{o}dinger equation all emerge from geometric quantization. This paper
serves as a review of the subject written in an informal style, often taking an
example-based approach to exposition, and attempts to present the material
without assuming the reader is an expert in differential geometry.
