AtomicDensityMatrix (ADM) is a package for Mathematica 6 and later that facilitates analytic and numerical density-matrix calculations in atomic and related systems. It is intended to be both general and user-friendly, and to be useful to the working physicist as well as to students. Atomic systems that can be studied with ADM include atomic vapor cells, nitrogen-vacancy centers, optical magnetometers, gyroscopes, laser guide stars, etc. This workshop will be presented by Dr. Simon Rochester who will guide us through the capabilities for atomic systems analysis with the Atomic Density Matrix package for Mathematica.