As mentioned in other reviews of this book, don't expect a fantastic awe-inspiring narrarive from this one. Unfinished Tales simply fills in the gaps and elaborates on aspects of Middle Earth for those who wish to examine the addictive world that Tolkein created. Nevertheless, the book is still a fine piece of work and superbly edited/amended by Tolkein's son, Christopher. Many elements are covered in this book, from the adventures of Elves and Men of the First Age to the events that occured after those that transpired in the Lord of the Rings. It explores in depth many of the unknown characters who are important to understanding the history of Middle Earth, and also goes into tales concerning some now well-established characters (e.g. Elrond, Gandalf, Sauron and Galadriel).
I would reccomend this book to anyone who enjoys the world that Tolkien created and wishes to gain a better understanding of the characters and events that surround the epic War of the Ring. My only warning is to be prepared for many appendicies, footnotes and indexes that. Their inclusion is often with the intention of providing a clearer picture, but often have the opposite effect and you end up more confused than ever. But, then again, trying to solve the mysteries of Middle Earth adds to the enjoyment even more.