I would recommend this book to all audiences as it captures not just the mindset of space travel enthusiasts but also that of scientists, adult readers and those looking for a unique and capturing plot. I would love to see a follow up novel and see how Mark Watney adapts to being back on Earth and what direction his life takes. I know Andy Weir stumbled into becoming an author as The Martian was only designed as a project on his website, being released for free one chapter at a time, but fingers crossed it inspires him to pick up a pen and keep jotting in the hard science fiction genre.