What are some recommended books for understanding Korean mythology and folklore?

Korean myths and folklore are important elements in understanding Korean culture and history. Myths have greatly influenced the spirit and values of the Korean people, while folklore contains wisdom and lessons passed down through generations. What books should one refer to in order to deeply understand this traditional Korean culture? The main themes of Korean mythology include creation myths, hero narratives, and the relationship between gods and humans, while folklore features instructive stories such as 'Heungbu and Nolbu' and 'Byeoljubujeon.' Are you looking for books that explain these themes well? I am waiting for recommendations from those who know of books or materials that explain Korean traditional culture well. Please share any books or materials that you know of that would help in understanding Korean myths and folklore. I am also curious about your opinions on the differences between myths and folklore.