Across time and place, stories of Earth Gods (Vanir) and Sky Gods (Aesir) have endured. Offerings to the Earth Gods, for good harvest go as far back as we know. Requesting the blessings from the Thunder God has also been constant. Usage of such symbolism as the Fylfot goes back to the Stone Age. However, despite that fact that the Gods, Goddesses and practices of Asatru are ancient, there were many regional variations and emphases. Therefore, Asatru although ancient hasn’t been static in time or place.
Books in PDF format to read:
Moses Gaster - The Sword Of Moses An Ancient Hebrew Aramaic Book Of MagicMarcus Cordey - Magical Theory And Tradition
Reeves Hall - Asatru In Brief