Bas-relief is a sculptural technique where the figures or designs are slightly raised from a flat background. This method creates a three-dimensional effect while remaining attached to the surface, allowing for intricate details without the need for full sculpture. Commonly found in architecture, coins, and art, bas-relief can depict various subjects, including historical events, religious themes, or decorative patterns. The depth of the relief can vary, but it typically remains shallow, making it suitable for walls and other surfaces where space is limited.