This is pure fanservice. Glorious fanservice. If you're into Tolkien's work, this is a jewel: marvellous illustrations coupled with a poem by Bilbo. Moving, subtle, full of hints and references to the stories of the Hobbit and the Lord of the Rings. I doubt anybody except fans will appreciate this, since you need to know the story to really "get it". But if you are a fan, this is a must.
Also, this is what Middle-earth looked to Tolkien. Forget the movies, and watch the original at its best.