  These notes are based on the lectures I gave at the 2015 European School of
High-Energy Physics (ESHEP2015). I discuss 1) flavor physics within the
Standard Model, 2) effective field theories and Minimal Flavor Violation, 3)
flavor physics in theories beyond the Standard Model and "high energy" flavor
transitions of the top quark and of the Higgs boson. As a bi-product, I present
the most updated constraints from the measurements of B_s -> mu^+mu^-, as well
as I discuss the most recent development in the LHC searches for top flavor
changing couplings.
