The Edda is a collection of Old Norse poems and stories from the 13th century. It is considered to be one of the most important works of Scandinavian literature, and is often referred to as the 'Norse Bible'. The Edda contains stories of Norse mythology, including tales of the gods and goddesses, as well as heroic sagas and other stories. It is an invaluable source of information about the beliefs and culture of the ancient Scandinavians.