Computer game tie-ins are generally not well thought of by book readers, and quite often this is justified. Not so, however, with the Fall of Reach. It's obviously not just been written to capitalise on the success of the games, and has been written in conjunction with the game writers. As such, the book takes the depth of the Halo story and builds upon it to create a rich and immersive world. Halo: The Fall of Reach is a prequel to Halo, and gives us details of how the Master Chief and the others came to be Spartans, the appearance of the fanatical Covenant, the fall of the human fortress world Reach and the escape of the Pillar of Autumn to Halo.
There are one or two let-downs. Nothing has to do with the story, more with the editing. Parts of the text seem to have been copied and pasted into random places, and various words seem to become confused, as if an object has been named one thing, that name has been forgotten and replaced with something else.
These flaws are minor, and do not detract from the story at all. If you're a fan of the game, or even if you're not, this book provides depth and detail to the Halo universe that is hard to put down, and harder still to dislike.