2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/82618I discuss the diffractive production of charmonium from nuclei and the anomalous nuclear attenuation --- termed ``color transparency'' --- attributed to such processes, focusing on the few tens of GeV energy regime germane to the ELFE project. A critical review of color transparency calculations is presented, and the major sources of uncertainty are emphasized.6 pages, latex, uses epsf.sty, invited talk presented at the ELFE Summer School on Confinement Physics, July 22-28, 1995, Cambridge, EnglandNuclear TheoryHigh Energy Physics - Phenomenologytext