Redshirts is a humorous sf novel by former SFWA head John Scalzi. It’s also the first Hugo award winner I managed to read before it actually won the award, so that made me feel special.
The premise of the book is fairly evident from the title, but I’ll throw together an extra-brief plot summary.
Extra-brief plot summary
On a ship suspiciously reminiscent of something out of the original Star Trek TV show, a group of ensigns realize that whenever one of them goes on an away team with a member of the bridge crew they won’t be coming back.