How many books did John Ronald Reuel Tolkien write and what are they called?

John Ronald Reuel Tolkien wrote a variety of works, including novels, essays, poems, and children's books. Here's a breakdown of some of his most famous works:

Novels:

* The Hobbit (1937)

* The Lord of the Rings:

* The Fellowship of the Ring (1954)

* The Two Towers (1954)

* The Return of the King (1955)

* The Adventures of Tom Bombadil (1962) - a collection of poems and stories

* The Silmarillion (1977) - a collection of myths and legends about the history of Middle-earth

* Unfinished Tales (1980) - a collection of Tolkien's writings that were not completed

Other Notable Works:

* The Adventures of Tom Bombadil (1962) - a collection of poems and stories

* Farmer Giles of Ham (1949) - a children's fantasy novel

* The Adventures of Bilbo Baggins (1977) - a shorter version of The Hobbit

* Smith of Wootton Major (1967) - a children's fantasy novel

* Tree and Leaf (1964) - a collection of essays and poems

This list is not exhaustive, but it includes some of Tolkien's most well-known and influential works. He also wrote numerous essays, poems, and scholarly works on language and mythology.