Which Tolkien work is listed as following The Hobbit?

The Tolkien work listed as following The Hobbit is The Lord of the Rings. The books are connected as stories set in Middle-earth, with The Lord of the Rings growing out of the sequel Tolkien’s publisher requested after The Hobbit became successful.

Tolkien began developing the successor under the working concept of a “new Hobbit,” but the project expanded into a much longer and more serious narrative. The Lord of the Rings follows the fate of the One Ring and includes characters and events that reframe parts of The Hobbit, especially Bilbo’s encounter with Gollum and the ring.

The relationship also affected later editions of The Hobbit. Tolkien revised the “Riddles in the Dark” chapter for the 1951 second edition so that Gollum’s behavior and the ring’s nature better matched the mythology of The Lord of the Rings. The Silmarillion and Unfinished Tales are important Tolkien works, but they are not listed as the direct follow-up to The Hobbit.