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We review recent ALICE results on direct photon production in pp, p-Pb and Pb-Pb collisions at LHC energies. In light systems, pp and p-Pb, no signal of direct photons at low p T < 3−5 GeV/c is observed within uncertainties, while at high p T our measurements are consistent with NLO pQCD calculations. In central and mid-central Pb-Pb collisions a thermal photon contribution is observed at low p T < 3 − 4 GeV/c with slopes T eff = (304 ± 11 stat ± 40 syst ) MeV and (407 ± 61 stat ± 96 syst ) MeVdoi:10.1051/epjconf/201819105001 fatcat:6ndgzppa4jaepkoc6yu6sstuqy