His technique includes the use of wash and charcoal pencil.

Much of his work were drawings completed in carbon or charcoal pencil but did work in large scale oil painting.

The design of charcoal pencils are similar to that of graphite pencils while keeping intact with the properties of charcoal.

Charcoal pencils are compressed charcoals that are wrapped with a layer of wood.

Other types of pencil core are less widely used, such as charcoal pencils, which are mainly used by artists for drawing and sketching.