  The purpose of these lectures is to provide an introduction to the physics
issues which are being studied in the RHIC heavy ion program. These center
around the production of new states of matter. The Quark Gluon Plasma is
thermal matter which once existed in the big bang which may be made at RHIC.
The Color Glass Condensate is a universal form of matter which controls the
high energy limit of strong interactions. Both such forms of matter might be
produced and probed at RHIC.
