Open heavy flavour at the CERN-LHC

In this contribution recent open heavy flavour measurements from the CERN-Large Hadron Collider are presented and discussed. The focus is on prompt D meson and heavy flavour decay lepton production in pp, p-Pb and Pb-Pb collisions. Open beauty is studied through a displaced J/Ψ analysis. Heavy quarks allow to probe the degree of thermalization and energy loss mechanism(s) in the hot QCD matter produced in heavy ion collisions, whereas pp provide important baseline measurements for the studies in heavy ion collisions. The p-Pb data give an access to investigate cold nuclear matter effects.