Rackham would first lightly block in shapes and details of the drawing with a soft pencil, for the more elaborate colour plates often utilising one of a small selection of compositional devices. Over this, he would then carefully work in lines of pen and India ink, removing the pencil traces after the drawing had begun to take form. For colour pictures, Rackham preferred the 3-colour process or trichromatic printing, which reproduced the delicate half-tones of photography through letterpress printing. He would begin painting by building up multiple thin washes of watercolour creating translucent tints. One of the disadvantages of the 3-colour (later 4-colour) printing process in the early years was that definition could be lost in the final print. Rackham would sometimes compensate for this by over-inking his drawings once more after painting. He would also go on to expand the use of silhouette cuts in illustration work, particularly in the period after the First World War, as exemplified by his "Sleeping Beauty" and "Cinderella".