These two-color prints were made by the students of grade 9 with the Adigraf, an engraving plate soft and easily workable. First, we drew an image depicting a face, inspired by the portraits of the German Expressionists, made with the technique of woodcut. The sketch was then drawn on the adigraf plate which was later engraved with the chisels of various shapes. The students have engraved their figure making sure to engrave the areas of “empty” (negative space), and leaving the parties “full” (positive space). After a first printing in red, the plate was further engraved with new details. The second printing with the black color was superposed on the first printing in red, so as to thereby obtain a two-color printing. In the images we see the whole procedure.