Before I start my review, I think it is worth mentioning that this book is a biography of astronaut Scott Kelly's life. It isn't just a book about his experiences as an astronaut or aboard the International Space Station. I went into it thinking it would solely be about his time as an astronaut or his record-breaking year aboard the International Space but it was a biography- chroniciling his life from childhood to his experiences as an astronaut. It's hard for me to rate biographies because I feel like you're trying to rate someone's life. Which feels wrong. So for the most part my rating is based on the writing and what the author or subject chose to expound on and what they maybe should have spent more or less time on. Overall this one was really good and I enjoyed it. Very enlightening.