  We summarize measurements of b and c jet production at the LHC, which are an
important signature and background for decays of massive particles such as
H-to-b-bbar. These include measurements of the inclusive and dijet production
of heavy quark jets, b and c jets produced in association with vector bosons Z
and W, and decays of boosted Z bosons into pairs of b-bbar. The current status
of b tagging and b jet energy scale is also reviewed. These measurements test
perturbative QCD in the four and five-flavor number schemes, and provide
insight into the relative importance of heavy flavor production through flavor
creation, flavor excitation and gluon splitting channels. The W+c measurement
provides additionally a powerful way to probe the strange quark and antiquark
sea in the proton. The recent studies looking separately at production of one
and two b jets find generally good agreement with theory predictions for two
b-jet production, while some discrepancies are observed for singly produced b
jets, particularly at large b-jet pT , where gluon splitting becomes dominant.
