"The Golden Bough" is a comprehensive study on mythology and religion, exploring the common themes found in different cultures around the world. The author uses a wide range of sources to argue that human belief progressed through three stages: primitive magic, replaced by religion, which in turn was replaced by science. The book delves into various rituals and customs, including the concept of the dying god in mythology and the role of fertility rites in agriculture. The author's theories have had a profound influence on both literature and anthropology.

"Works and Days" is an ancient Greek epic poem that provides advice on life and farming. The author uses the myth of Prometheus and Pandora to explain why life is hard for humans, attributing it to Pandora's release of evils into the world. The work serves as a farmer's almanac, giving detailed advice on the best times to plant and harvest crops, and also provides moral guidance, emphasizing the importance of hard work, justice, and piety.

"The Kalevala" is an epic poem that compiles Finnish and Karelian folklore into a cohesive narrative. It is centered around the hero Väinämöinen, a shamanistic figure with magical powers, and his adventures with other characters such as the blacksmith Ilmarinen and the reckless Lemminkäinen. The book covers a wide range of themes, from creation myths and heroic quests to romance and revenge, providing a rich tapestry of ancient Finnish culture and mythology.