I saw the series on Netflix and thought I would try the book. The book is somewhat different from the series, but they basically have the same premise. I thought the book was much better (as usual)...it kept the story tighter and allowed the author to construct a dark, future, dystopian world that allowed strong characters to flourish in this intriguing story. The idea of digitizing the human consciousness and allowing it to be placed in different "sleeves" (bodies) was both fascinating and terrifying at the same time. Definitely not for kids, this one will probably go down as one of the classics as time goes on, surely propped up by the mainstream success of the Netflix series, but absolutely able to stand on its own.