We review data for nucleon electromagnetic form factors, emphasizing recent measurements ofGE/GMthat use recoil or target polarization to minimize systematic errors and model dependence. The data are parametrized in terms of densities that are consistent with the Lorentz contraction of the Breit frame and with pQCD. The dramatic linear decrease inGEp/GMpfor 1 ⩽Q2⩽ 6 (GeV/c)2demonstrates that the charge is broader than the magnetization of the proton. High‐precision recoil polarization measurements ofGEnshow clearly the positive core and negative surface charge of the neutron. Combining these measurements, we display spatial densities foruanddquarks in nucleons. © 2003 American Institute of Physics