CP AND CPT

Some aspects of CP violation in CPT-invariant and CPT-noninvariant wor lds are discussed. In particular, emphasis is placed on the fact that CPT invariance is tested for the {K-0, ($) over bar K-0} system with o nly 2% accuracy. The prospects for improving in the near future our kn owledge about the origin of CP violation and for increasing the accura cy in the measurements of the parameters characterizing CPT violation are considered.