"I am in too great doubt to rule. To prepare or to let be?
To prepare for war, which is yet only guessed: train craftsmen and tillers
in the midst of peace for bloodspilling and battle: put iron in the hands
of greedy captains who will love only conquest, and count the slain as
their glory? Will they say to Eru: [God - MT] At least
your enemies were amongst them? Or to fold hands, while friends die unjustly:
let men live in blind peace, until the ravisher is at the gate? What then
will they do: match naked hands against iron and die in vain, or flee
leaving the cries of women behind them? Will they say to Eru: At least
I spilled no blood? " J.R.R.
Tolkien, Unfinished Tales
J.R.R. Tolkien is for sure one of the most important writers of the 20th century. He is recognized by most for The Lord of the Rings, a three-volume novel cycle, and for The Hobbit, a children's book (in origin) published in 1937.
By academics he is recognised for his marvellous essays and contributions to high quality philological works. Besides the well known Middle-Earth related works, he wrote more than 29 books (most of them can be seen at the right menu), then translated or contributed to 36 more books, and made contributions to 39 periodicals (see books edited, translated, or with contributions by J.R.R.Tolkien). The volume of his work appears to be rather large, but we must remember that he was a professor. He was expected to publish a great deal. Examples of his academic works are for example A middle English Vocabulary and Beowulf: The Monsters and The Critics.
His work on Lord of the Rings and other works of Middle Earth never really took him very far away from his work on academic projects. His passion was, after all, philology, which Tom Shippey (Author of J.R.R. Tolkien: Author ot the Century) defines as "the study of historical forms of a language or languages ... and also of related language."
Tolkien studied Old and Middle English, along with the "ancient languages of Britain." His extensive study of ancient languages and literature comes out in his choice of character names, in the riddles and songs that appear throughout his texts, and also in his choice of settings, as he was "reconstructing" a world from words.
You can use the right menu to see descriptions, deeper insight and reviews of all books written by J.R.R.Tolkien which are currently in my library.