This book is huge, 800+ pages huge. It's a great King yarn, just like his other heavyweights like "Under the Dome". Going back in time to right a wrong that you believe will make the present-day world a better place. There's nothing wrong with that. I rooted for Jake and I was excited to see what 2011 would look like if Kennedy had lived. This is definitely worth the read, but it will own your nightstand for a while.