Recent results on jet production in neutral current deep inelastic scattering
and high energy photoproduction at the HERA electron-proton-collider are
briefly reviewed. The results are compared to QCD expectations in NLO and
αs​ determinations using these data are summarized.Comment: 12 pages, 10 figures, talk given at the 9th Adriatic Meeting
"Particle Physics and the Universe" in Dubrovnik/Croatia, 4.-24.9.200