The book covers various polarization and directional effects - practically important for diagnostics of plasmas - in the radiation of satellites of spectral lines from plasmas, in the intra-Stark spectroscopy of plasmas, in the Stark broadening of spectral lines by a high-energy hydrogen or deuterium beam, or by a relativistic electron beam in magnetic fusion plasmas, in the Stark broadening of spectral lines in strongly-magnetized plasmas, in the radiation of plasma-based x-ray lasers, and in the laser-induced fluorescence from plasmas.