There are no cross sections for ships or vessels but does have pretty indepth profiles on weapons, ships, and other technology. I got it. I'm a little disappointed with the layout of the book but as far as just plain information provided, it's massive. It pretty much covers every single known Halo media from the games to the books to the comics up to ODST. Very cool profiles, a two or three page profile on the Master Chief alone I believe...really cool book. I reccomend it. I just wish the layout was better.