  A symmetry preserving framework for the study of continuum Quantum
Chromodynamics (QCD) is obtained from a truncated solution of the QCD equations
of motion or QCD's Dyson-Schwinger equations (DSEs). A nonperturbative solution
of the DSEs enables the study of, e.g., hadrons as composites of dressed-quarks
and dressed-gluons, the phenomena of confinement and dynamical chiral symmetry
breaking (DCSB), and therefrom an articulation of any connection between them.
It is within this context that we present a unified study of Nucleon, Delta and
Roper elastic and transition electromagnetic form factors, and compare
predictions made using a framework built upon a Faddeev equation kernel and
interaction vertices that possess QCD-like momentum dependence with results
obtained using a symmetry-preserving treatment of a vector$\,\otimes\,$vector
contact-interaction. The comparison emphasises that experiment is sensitive to
the momentum dependence of the running coupling and masses in QCD and
highlights that the key to describing hadron properties is a veracious
expression of dynamical chiral symmetry breaking in the bound-state problem.
