The Halo boxed set comes with three book “Halo Contact Harvest” “Halo Ghost Of Onyx” and “Halo Cole Protocol”.
The first novel Halo Contact Harvest is an exciting book that wil grasp you by the head as a brute would to a marine and pull you into it's mouth of great story and you will never be able to come out. it tells you the entire story of how the Covenant and human war had begun and show you some of the more trajec side of the story.
The second Halo Ghost Of Onyx is a truly amazing book that will make you think why that way why didn't they just do the plan this way. In other words the book will make you continue to think of the story long after you finish the book.
The Third Book Halo Cole Protocol is another great book you can read on how and why the humans have created a rule when in slipspace and you will know alot more of the Halo universe.
If you want to find out more about the halo universe then you need to buy this book set why? Reason #1: you buy it the profits will help bungie make another halo game Reason#2: It Is AWESOME!!!!!!!