Some artists specialize in etching, which is a form of printmaking that involves using sharp tools to carve lines into a metal plate. The resulting design is then transferred onto paper or other materials. Etchers use a variety of tools, such as needles, burins, and engraving machines, to create their art. Etching has been used for centuries to create beautiful works of art, and many famous artists have used this technique to create their masterpieces.