Recent developments in the study of the thermoluminescence of irradiated alkali halides indicate that many of the observed glow peaks are due to thermoluminescent processes related to the recombination of radiation induced lattice defects. There is a large amount of experimental results which supports that the F+H recombination is a rather common thermoluminescent process. Under some conditions it has been observed that the I + F, I + VK and H + α recombinations can indirectly induce light emission. No luminescence associated with the I + α recombination has been found