This was an absolute banger of a book! Ryland Grace's journey is one that you will latch onto as you progress through the book. From the opening lines to the end of the book I was hooked. Andy Weir has a knack for making the complicated science of space easy to digest. That was crucial in this book, especially as the story progresses. I thoroughly enjoyed this book and can see why it has obtained the accolades that it has.