Julien Lesgourgues currently works at École Polytechnique Fédérale de Lausanne and in the Theory Division at CERN, Switzerland. His research is focused on cosmology and on the theoretical interpretation of cosmic microwave background and large-scale structure astrophysical data. Gianpiero Mangano is a Senior Researcher in Theoretical Physics at Istituto Nazionale di Fisica Nucleare (INFN), Napoli. His research interests cover several areas in cosmology, such as primordial nucleosynthesis and the physics of neutrinos in the early Universe, and cosmological aspects of noncommutative spacetimes at the Planck scale. Gennaro Miele is Associate Professor in Theoretical Physics at Università degli Studi di Napoli 'Federico II'. His main research interest concerns cosmology, where he has been working in primordial nucleosynthesis and neutrino cosmology. Sergio Pastor is a Researcher in the Instituto de Física Corpuscular (IFIC), CSIC-Universitat de València, Spain. His main research interests include neutrino physics, in particular the study of their role in astrophysical and cosmological scenarios, and other topics in astroparticle physics.