Cosmic Microwave Background Anomalies meet Primordial Non-Gaussianity

Despite the Standard Cosmological Model being well established, several unexpected statistical features (anomalies) are present in the data of the Cosmic Microwave Background (CMB) temperature anisotropies. If these anomalous features were to have a primordial origin, they could indicate an apparent violation of statistical isotropy of the Universe at the largest cosmological scales, thus providing an exciting opportunity to probe the exact physical mechanism operating at the very first epochs of the Universe. This Thesis will investigate the CMB anomalies from an observational point of view, providing an up-to-date review of the main models and explanations proposed in literature, focusing in particular on the possibility that such anomalies are related to non-Gaussian features of the primordial cosmological perturbations arising from inflationary models in the Early Universe.