Are there any books that deal with the story of the one ring?
 

other than the hobbit,fotr,tt and rotk

[ August 13, 2002: Message edited by: Mister Underhill ]

You might want to read The Silmarillion, which re-tells the story of the Rings of Power in a different style (and not at such length). After that, you're in the territory of Unfinished Tales and the Histories of Middle-Earth. I'm sure that someone more knowledgeable than I can fill in the details.

r there any books that pick up where rotk left off

The RoTK leaves off after everyone is either dead or left into the west. I do not know what else you could possibly want.

Nothing complete, I'm afraid. The Return of the King was the last of the Middle-Earth books that Tolkien was able fully to revise and compile before his death, so the appendices to The Lord of the Rings are about as much as there is on later events. There might be something in the Histories, my collection of which remains unread at the moment pending my acquisition of the first volume, but if there is any such fragment it will be just that: a fragment.

[ August 13, 2002: Message edited by: Squatter of Amon Rudh ]