is like reading the bible, format-wise. A blend of historical anthology from various peoples (flight of the Noldor story, Fall of Gondolin etc), individual stories (Beren and Luthien, Children of Hurin), cautionary tales (Akallabeth), and prehistorical narrative (Ainulindale, the great migration of elves from Cuvienen to the West, the story of how the dwarves came to be), all split up into multiple, distinct "books" within a single tome.
Ie if one can read the Christian bible, one can easily read the Silmarillion, because they're structured/compiled very similarly within the overall book. Just as the bible has 66 distinct books, and bible stories within them, some historical anthology (Chronicles, 1/2 Kings), some individual stories (Ruth, Esther, and one can include the Gospels here as well), cautionary tales (Job, Proverbs), prehistorical narrative (Genesis), and doctrinal treatises (Paul letters- I'd say parts that weren't published in the Sil, but could fall under this particular analogy, would be LACE, and Athrabeth Finrod ah Andreth).
I'm not saying that both share all sub-categories, but the STRUCTURE (multiple books, each different in style, compiled into one volume) is incredibly similar in both.
So, allegorically speaking, reading The Silmarillion will be a lot easier for someone who is familiar with the Christian bible, in terms of overall editorial format. The editorial format/structure is VERY similar.
I would also advise familiarizing oneself with the family trees first, especially the F-names, because there are a lot of them! That can help with the confusion, and keep everyone straight in one's mind [

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