Did you know that the first paperback edition of Lord of the Rings published in the U.S. was unauthorized? Through some glitch in the copyright, Ace Books was able to get a set on the shelves first. Needless to say, Tolkien was more than a bit perturbed. He waged war against the Ace edition in the press. Public pressure caused Ace to cease publication and negotiate royalties with Tolkien. The authorized Ballantine paperback edition came out later the same year (1965) with a special blurb by Tolkien imploring his readers to respect the copyright by purchasing the Ballantine set.