Crests are decorative elements often found on coats of arms, representing a family's heritage or achievements. They typically sit atop a shield and can include various symbols, animals, or objects that signify specific traits or values associated with the family or organization. In heraldry, crests are distinct from the shield itself and are usually depicted on a helmet or a wreath. Each crest is unique and can be traced back to a particular lineage, making them important for understanding historical family connections and social status in European culture.