The Halo Graphic Novel is great, and the artwork at the back is very nice. Uprising tells a nice story, but it doesn't explain how Master Chief get to Earth as much as a civilian story. It's still a good read. Helljumper is alright. Kinda disappointing ending, but full of ODST badass. And you get references to The Fall of Reach, and Spartans in it too. And the main characters are from Halo:ODST, so it kinda deepens their characters too. They're worth getting, but only if you have spare cash lying around. They aren't a must read, except for the Graphic Novel.