  Current results in high temperature gauge theories obtained in the context of
the perturbative method of resumming hard thermal loops are reviewed. Beyond
leading order properties of the gluon excitation, and the recent
(controversial) calculations of the damping rates are discussed. QCD
predictions on plasma signatures are exemplified by the thermal production
rates of energetic as well as soft photons. [Talk given at the 3rd Workshop on
Thermal Field Theories and their Applications, August 15--27, 1993, Banff,
Alberta, Canada]
