Medical illustrators are artists who create graphics to meet the requirements of communication media for the biosciences. This work may be used in publications, film, television, exhibits, and three-dimensional models. Because of the variety of assignments in medical illustration, the artists must be accomplished in drawing, painting, and modeling techniques as well as experienced in the media and materials of commercial art. A medical illustrator may work as a member of a research team to provide illustrations and assist with the study. Medical illustrators may also be responsible for preparing charts, graphs, and tables of statistical data. Some artists specialize in preparing artificial body parts such as noses, eyes, or ears to be used when patients require cosmetic or functional improvements. Still others prepare models for instructional purposes. They must have a strong foundation in anatomy and general medical knowledge to ensure the authenticity of their work.