Charcoal pencils are drawing tools made from compressed charcoal encased in wood, similar to traditional pencils. They produce rich, dark lines and are favored by artists for their ability to create a range of tones, from deep blacks to soft grays. The smooth texture allows for easy blending and shading, making them ideal for sketching and detailed artwork. These pencils come in various hardness levels, allowing artists to choose the right one for their needs. Charcoal is a versatile medium that can be used on different surfaces, including paper and canvas, and is often used in combination with other materials like pastels or ink.