  The magnetic moments and transition magnetic moments of the ground state
baryons are analyzed in an expansion in 1/N_c, SU(3) flavor symmetry breaking
and isospin symmetry breaking. There is clear evidence in the experimental data
for the hierarchy of magnetic moments of the combined expansion in 1/N_c and
flavor breaking. SU(3) breaking in the magnetic moments is expected to be
enhanced relative to that of other hadronic observables, and significant SU(3)
breaking is found.
