Brush Drawing - An Oriental type technique usually enhancing a wash of a thinly applied design. Caricature Design - Usually enhancing aspects of an object to indicate the artists interpretation of the original. Chasing - Stamping, pressing, hammering, cutting, groveling, or other types of texture applied to leather, wood, paper, metal, glass, plastic - ext. Coulisse - Arranging portions of a work of art so as to guide an observer to concentrate on a specific area. Easel / Cabinet Pictures - Renaissance era paintings designed for displaying other then on a wall. Egg and Dart - Decorative technique using arrow and oval shapes. Enamel - Melting glass on metal, ceramics, or other glass. Etching - Using a corrosive material to produce a design on metal, glass, ceramic, or plastic. Foxing - Brownish discoloration usually caused by dampness. Non-Lightfast - Pigments that fade when exposed to light, and / or the atmosphere. Gliding - Metal " usually gold " applied as decoration and / or protection. Gouache - Opaque paints or glaze. Lettrism - Symbols and / or letters used to form meaning in visual art. Majolica - Strongly decorated Italian ceramics. Marquetry - Materials such as ivory, gold, wood, glass, and / or gems inlaid in such a way as to create a design. Non-Lightfast - Paint, or inks, that fade when exposed to light, and / or atmosphere. Oiling Out - Appling oil to a painting to brighten colors and darken shaded areas. Optical Mixture - Using daubs of different colors of paint, or different colored gems that look like a different color from a distance. Ormolu - Ornamental objects, usually metal, applied as decorations, usually to furniture. Passage - Moving from one color, object, or artists efforts to a different part of the same work of art. Pellicle - The surface of oil paint when it dries. Petard - " Flamboyant "  work of art produced to draw attention to itself, promote a cause, or another object. Polyptych - Work of art consisting of multiple parts - usually more then three. Porcelain - Developed in China around 800 A.D.  Considered to be the finest ceramic. Quadratura - Art portraying limitless dimension. Repousse - Metal decorated by hammering from the backside. Retreating Color - shading used to indicate distance. Squaring - Using measured squares to enlarge or reduced proportionally. Tactile Values - Producing the illusion of texture, motion, temperature - ext. Tinsel Painting - Etching, or painting, on foil backed glass. Tole - Tin objects painted in decorative styling. Under painting - Preliminary sketching before painting. Veduta - Accurate painting of a location good enough to be easily recognized.