The live-casting technique was in widespread use throughout the nineteenth century in the most diverse sectors, from sculpture to medical practice, as is remembered in the "A fior di pelle" catalogue. Live casting in the XIX century, edited by the Vela Museum in Ligornetto, Switzerland. Executing it requires remarkable dexterity: it is a delicate and demanding technique designed for capturing nature in the act by fixing an instant, a furtive expression, or a fleeting movement in solid material. The workshop aims to give a general overview of the basic aspects and will constantly combine theory and practice. From the preparation of the job to the model; from the various properties of plaster, to the simple mould, up to the production of a live-casting.