I loved this book. Mark’s disposition and sense of humor are the best. I get more upset about regular everyday nothing than he is about being stranded. That really makes me think about how important attitude actually is. He explained everything as he worked. I’m not a scientist, engineer, astronaut, botanist, etc., but each detail was believable to me. It was amazing how much work everyone involved especially Mark had to put into survival and recovery. I also loved the summary about human nature. This story is intelligent, funny, suspenseful and heartwarming.