LOTR

Quora asks the cogent question: why is Lord of the Rings considered such a classic?

Answer by Ernest W. Adams, game design consultant:

That's a question with a long answer, but I'll give you the two-minute version.
It's not about the races or the references to the destruction of the English countryside. Academic enthusiasm for it really has very little to do with conventional fantasy tropes at all. It's about the depth behind every sentence on the page. Most fantasy authors make up some gibberish and call it a language. Likewise, they make up some place-names and call it done. For them the goal is to get the plot hammered out and sell their books.
Here's what J.R.R. Tolkien actually did.: before and during World War One, he began inventing languages for fun, because he was a linguistic genius and could just do that. Then he decided to invent a history that would explain how those languages came to exist. That required a map, so he created a map and a long series of legends (now called The Silmarillion) to go with it. And he used his incredibly extensive knowledge of Finnish, Welsh, Anglo-Saxon, and Scandinavian language and legend, and he borrowed the names of the dwarves from the Icelandic sagas and the stories from the Finnish Kalevala and his unbelievable depth of reading and linguistic skill went into it all.
Then he tried to publish it, and his friends said: no way in hell. This stuff is too arcane. Nobody cares about your invented languages and map and legends and so on.
Then he wrote a fun little children's story called The Hobbit, set in his world. He gave it to Sir Stanley Unwin, of the book publishers Allen & Unwin, and he gave it to his kid to look at, and his kid read it and wrote this:

Bilbo Baggins was a Hobbit who lived in his Hobbit hole and never went for adventures, at last Gandalf the wizard and his Dwarves persuaded him to go. He had a very exciting time fighting goblins and wargs. At last they get to the lonely mountain; Smaug, the dragon who guards it, is killed and after a terrific battle with the goblins he returned home, rich!  This book, with the help of maps, does not need any illustrations it is good and should appeal to all children between the ages of five and nine.

On the basis of this recommendation, Unwin agreed to publish it. It was a hit. People loved it and asked for more stories about hobbits.
So he started another fun little children's story, only his mind was working all the time, and it just got longer and deeper and darker and more grown-up as he went, right through World War Two. Then when he reached the end, he had to go back and fix a lot of things, because it wasn't a children's story anymore.
But almost every single thing in The Lord of the Rings is built on something he had created decades previously, and that itself was built on centuries of myth and legend from Northern Europe.
When the Riders of Rohan sing, they sing in Anglo-Saxon alliterative verse. When the elves speak, they speak in a language that actually works. Even the Ring inscription, which is almost all we have of the Black Speech, has correct verb tenses:

Ash nazg durbatuluk
One ring to rule them all
Ash nazg gimbatul
One ring to find them
Ash nazg thrakatuluk
One ring to bring them all
Agh burzum-ishi krimpatul!
And in the darkness bind them.

So -uk obviously adds all to the sense of the transitive verb; -ul- is them, the object of the verb; and -at makes it infinitive: to rule. The root words are durb, gimb, thrak, and krimp, which probably means bind. All this just for a language of which we only have nine words!
So far as I know, nobody else does this or even comes close to doing this. Of course many people don't care, but this is what amazes his more ardent fans.

Rico says he read the trilogy the first time when he was in high school (on the recommendation of his friend, Christopher Montalbano, and numerous times since...