I'm about to finish Tolkien's The Silmarillion, which tells the history of Middle-Earth in the first era (LoTR is the 3rd era). Especcially in the first half things are written down quite annoying and some much history, names, places, fathers, sons and daughters are described, it drives you wild. After a while when you start recognizing the characters and locations it gets interesting. My version also contains 2 stories after "The Quest for the Silmarilions", about the fall of the people of Númenor (up until the end of the second era) and the Rings of Power, going all the way through the rise of Sauron and the Lord of the Rings story.