This book jumps around a couple years each chapter, so that took a few chapters to figure out. Second, this book was strange with commas. Another thing that bugged me was in one chapter he's just naming things like: the 33rd President of the United States or The Emperor of China. Meaningless things. They should be names, sometimes that bugs me.
At the end, I might add, the book got so much better. It was sad, and exciting, all at the same time! That is something not many writers can do.