Any Lore on the 4th Age in Tolkien's Works?

[faila]

I was reading the prolog to the Lord of the rings and it mentioned things about the 4th age. I was wondering if any of the Home series or other books contain any information on this age.

 

[FoolOfATook]

Check out Volume XI, The Peoples Of Middle Earth for the beginings of a sequel to LOTR that Tolkien started and abandoned. It was set about 100 years after Aragorn's death, I believe. The Appendices to LOTR also have some information about the Fourth Age.