I recently finished reading The Martian by Andy Weir. It was one of the most enjoyable works of fiction I've read recently, and so I can't help but recommend it here.
The story is a kind of Robinson Crusoe/Cast Away extreme survival adventure that happens in space, and will especially appeal to fans of MacGyver-style resourcefulness with some realistic science and geeky tech explanations thrown in. It's also pretty funny at times, and strangely moving at others. Check it out.