2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/161721In this chapter we review the present status of the Gaussianity studies of the CMB anisotropies, including physical effects producing non-Gaussianity, methods to test it and observational constraints.29 pages, 13 figures, contribution to the proceedings of the IAC Winter School 2007 "Cosmic Microwave Background: from quantum fluctuations to the present universe"Astrophysicstext