For this technique he suggested using a neutral beige or gray Canson Mi-Teintes drawing paper and preparing it by layering terra cotta conte or chalk. This establishes a ground that can be rubbed into the paper and later on erased out for highlights and lighter tones. As the drawing takes shape details can be added using charcoal pencils and red pastel pencils. Brushes can be used to blend and finally highlights are added using white chalk.
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Demo drawing by Robert Liberace using three colored crayon technique.
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Highlights and details added to finished drawing.
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Detail of the finished drawing
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Detail of one of my three colored crayon drawings.
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Finished study using three colored crayon technique. Drawing by Marie Dauenheimer.