Redshirts
by John Scalzi
Highly recommended at Readercon, despite the fact that Scalzi (who is, after all, president of SFWA) is not often discussed at Readercon.
Ensign Andrew Dahl, newly assigned to the starship Intrepid, finds his new job more hazardous than in ought to be. Indeed, most of the junior officers are acutely aware that, for a junior officer, being assigned to an “away team” is very bad news. The senior officers always come back, but ensigns die in countless horrible and pointless ways and they’re determined to understand why in this pleasant, metafictional romp.