On the occasion of the exhibition “Leonardo da Vinci’s masterpieces in engravings, held at the Château royal d'Amboise from June 1ᵉʳ to September 22, 2024, Laure Fagnart (F.R.S.-FNRS/ULiège) details the research project that enabled her to explore the - paradoxical - relationship the Florentine master maintained with the art of engraving.