As much as these have helped me, I'll need to point something out. The Nine Noble Virtues were made by two people to help others in terms of Heathen ethics, but it's also important to weigh them and make your own interpretation of them: these are (to an extent) my interpretation of the NNV.
I'm not saying they're useless, but one should also not just follow them because they're there. I'm saying that - supposing you agree with what each one says beforehand - you should follow them if you do agree with whichever virtue is there.
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Essentials of the Asatru Tradition
SpiritualThis is a book of the Asatru morals and ethics, Deities, Terrestrial spirits, and all else asatru.