J.R.R. Tolkien, born on January 3, 1892, was an English writer, poet, and philologist. He is best known for his high-fantasy works, including 'The Hobbit' and 'The Lord of the Rings' trilogy. Tolkien's imaginative world-building and intricate languages have captured the hearts of millions of readers worldwide. His writings have had a profound impact on the fantasy genre and continue to inspire new generations of fantasy writers and enthusiasts.