  These lecture notes are based on the hand-written notes which I prepared for
the cosmology course taught to graduate students of PPGFis and PPGCosmo at the
Federal University of Esp\'irito Santo (UFES), starting from 2014. This course
covers topics ranging from the evidence of the expanding universe to Cosmic
Microwave Background anisotropies. They can be found also on my personal
webpage http://ofp.cosmo-ufes.org/ and shall be published by Springer in 2018.
