Secondly, he was writing specifically for other poets, to explain the stories behind kennings, which were essential code for court poets of the time period. Basically poetry of this time read like "Grimnir at TEnagra, his arms wide" or some stuff like that. The point of Snorri's writing was a decoding manual.
https://www.amazon.com/Asatru-Beginners-Guide-Heathen-Path/dp/1578637023/
Barnes and Noble
https://www.barnesandnoble.com/w/asatru-erin-lale/1135232720
IndieBound (independent bookstores)
https://www.indiebound.org/book/9781578637027