We discuss the critical behaviour of strongly interacting matter close to the
QCD phase transition. Emphasis is put on a presentation of results from lattice
calculations that illustrate deconfining as well as chiral symmetry restoring
features of the phase transition. We show that both transitions coincide in QCD
while they fall apart in an SU(3) gauge theory coupled to adjoint fermions. We
also discuss some results on deconfinement in quenched QCD at non-zero baryon
number.Comment: 11 pages, talk given at Strong and Electroweak Matter '98,
Copenhagen, Dec. 9
