I know that's a lot. I've just started reading an old book from 1908 entitled "The Heroes" or "Greek Fairy Tales" by Charles Kingsley and in the preface it mentions Clement of Alexandria, who said that God had sent down Philosophy to the Greeks as he sent down the Gospel to the Jews. I looked it up and found out he lived in Alexandria while the library was still there. But what exactly did the library contain?
That library in the Nile Delta has an overblown place in popular imagination. I commend to your attention this answer from u/XenophonTheAthenian, and this one from u/Naugrith, both of which expound on The Library.