The Poetic Edda is a collection of Old Norse poems that were passed down orally through generations. It is also known as the Elder Edda and is considered one of the most important sources for Norse mythology. There are several synonyms or alternative names for the Poetic Edda, including the Elder or Eldermost Edda, the Saemundar Edda, and the Edda of Saemund Sigfusson. Another name for the Poetic Edda is simply the Edda, as it was the first known book to bear this name. Regardless of its title, the Poetic Edda remains a cornerstone of Norse mythology and culture.