  Jet production in proton-proton collisions is one of the main
phenomenological predictions of QCD. The ATLAS and CMS Collaborations have
performed measurements of several jet observables at the LHC and compared their
results to theoretical predictions and event generators. Useful physics input
for the determination of the parton distribution functions and the strong
coupling constant is provided. Photon production measurements represent another
important test of QCD and show strong sensitivity to higher-order corrections.
