General 1 photon parameterization of particles with structure 2 photon effects and Rosenbluth GEp Pion cloud model Cloet/Roberts DSE LFCBM VMD F2/F1 at high Q^2, pQCD predictions GPDs Faddeev equations 3He as a neutron target Relevant FSI contributions and how they are calculated Pion electroproduction GEn deuterium polarization observable data Radiative corrections Interactions of e and hadrons in neutron arm/calorimeters NMR/EPR principles