Unfinished Tales of Númenor and Middle-earth by J.R.R. Tolkien is a collection of stories that further relate to the events in The Silmarillion and The Lord of the Rings and tells more about the Elder Days of Middle-earth to the end of the War of the Ring.
I loved reading Unfinished Tales of Númenor and Middle-earth as I hadn't read this book before. It added to the stories that I am already familiar with. This is a great addition for collector's of Tolkien's work.