I wouldn't recommend K&R to someone who doesn't already have a background in programming.
If the person likes a text-based option, I'd recommend Beej's guide. It's written in an amusing, sort of silly way which keeps it from being too dry but also manages to deal with topics in a very reasonable manner and in a very good order for new coders.
@jeffalyanak yeah, agreed. I was recommending K&R if they do have a background in coding and just want to learn C