The 50 Best Sci-Fi Books for Every Kind of Reader According to Men's Health

"Defining 'science fiction' (so that one can say, definitively, this book is a sci-fi book) is a little like defining 'spiritual' or some other vague belief category that includes so many contradictory and peripheral and quasi-mystical tenants and offshoots that your friend who swears by it probably has no idea what it really is. 'Sci-fi' is a term that says everything and nothing simultaneously. We know what it means, intuitively, but not so much definitionally. At its core, science fiction is a conceit. It's a thought experiment beginning with a 'what if X' or an 'imagine a world in which Y.' It has something we might call a Device. And the Device must be its axis, it's inciting incident, its reason for existence. The story cannot be the story without the Device. And while loosening the sci-fi definition may open up just about the entire library, we've narrowed a list down to (in no particular order) some amazing reads.Here are the best sci-fi books for all readers." - menshealth.com