Transverse momentum distributions and generalized parton distributions provide a comprehensive framework for the three-dimensional imaging of the nucleon and the nucleus experimentally using deeply virtual semi-exclusive and exclusive processes. The advent of combined high luminosity facilities and large acceptance detector capabilities enables experimental investigation of the partonic structure of hadrons with time-like virtual probes, in complement to the rich on-going space-like virtual probe program. The merits and benefits of the dilepton production channel for nuclear structure studies are discussed within the context of the International Workshop on Nucleon and Nuclear Structure through Dilepton Production taking place at the European Center for Theoretical Studies in Nuclear Physics and Related Areas (ECT ) of Trento. Particularly, the double deeply virtual Compton scattering, the time-like Compton scattering, the deeply virtual meson production, and the Drell-Yan processes are reviewed and a strategy for high impact experimental measurements is proposed.PACS. 13.40-f Electromagnetic processes and properties -13.60.Fz Elastic and Compton scattering -13.60.Le Meson production a Corresponding author: voutier@ipno.in2p3.fr physics. After decades of theoretical and experimental efforts in elastic and deep inelastic lepton scatterings, a new formulation of the hadron structure [1-3] emerges that builds any hadron from the correlations between its inner partons. This powerful approach provides not only a tomographic image [4][5][6] of the nucleon and the nucleus, but also a comprehensive description of their internal dy-arXiv:1712.04198v2 [nucl-ex]