Engraving is a printmaking technique that involves incising a design onto a hard surface, typically metal, wood, or glass. The process creates a detailed image or text by cutting into the material, which can then be inked and pressed onto paper to produce a print. This method has been used for centuries in art, illustration, and currency production. There are various types of engraving, including intaglio, where the design is cut below the surface, and relief engraving, where the image is raised above the background. Artists and craftsmen often use tools like burins or gravers to achieve precise lines and textures in their work.