  Recent developments in the field of radiative effects in polarized
lepton-nuclear scattering are reviewed. The processes of inclusive,
semi-inclusive, diffractive and elastic scattering are considered. The explicit
formulae obtained within the covariant approach are discussed. FORTRAN codes
POLRAD, RADGEN, HAPRAD, DIFFRAD and MASCARAD created on the basis of the
formulae are briefly described. Applications for data analysis of the current
experiments on lepton-nuclear scattering at CERN, DESY, SLAC and TJNAF are
illustrated by numerical results.
