Theory of generalized parton distributions and deeply virtual
Compton scattering:
Hard exclusive processes allow to resolve the internal structure
of hadrons and even nuclei from a new perspective and provide so
complementary information to those obtained from inclusive
measurements. The non-perturbative partonic content, accessible in
hard exclusive processes, is encoded in generalized parton
distributions and distribution amplitudes. In this talk the theory
is shortly introduced and phenomenological applications are
discussed.