  The determination of quark masses has been transformed in the past few years
by accurate results from realistic lattice QCD. This has meant a range of new
methods for both b and c quarks which I will describe along with results from
continuum techniques. The recent improvement in Lattice QCD actions along with
the generation of gluon configurations including sea quarks on fine lattices
has given us viable methods for handling heavy quarks with relativistic
actions. This has allowed us for the first time to connect the heavy and light
sectors through accurate determination of ratios of quark masses, such as
m_c/m_s. Such ratios enable us to leverage the accuracy of c and b mass
determinations into accurate s and light quark masses. The comparison of quark
masses from different methods and formalisms provides a strong test of QCD and
the masses themselves are needed in calculations for the cross-sections of
various processes at LHC, for example H to bb.
