These prints belong to the portfolio 'Fifty Etchings'. In executing them LeBrun used a range of techniques. These include: silverpoint and drypoint (to create fine and furred lines by incising the plate directly using pointed tools), etching (in which a wax ground is scratched by a needle-like tool to create more fluid lines), aquatint (to create rich tonal effects), soft ground (a pencil pressed onto paper covering a soft wax ground produces a soft, printed line), and spit bite (in which the plate is bitten by acid brushed on directly). The resulting printed images are often densely layered with strong tonal contrasts. Le Brun contributed an essay to the Morandi exhibition catalogue.