Found this book difficult to read. The author paints an unlikable picture of his grandfather for the first half of the book. The grandfather is a criminal but Chabon makes him seem like a harmless trouble maker and mischievous. His grandfather sympathizes with Nazis because he’s obsessed with their technology and therefore fails to see how horrible they are. The grandfather is made even less likable because he believes his grandson (Michael Chabon) should publish his life story. His grandfather is blinded by his love/obsession for rockets and space exploration that he doesn’t see the mounting atrocities being committed during WWII. I never found any interest in reading about each narcissistic idiotic obsession or mistake his grandfather had/made during his pitiful life. It was hard to continue after each chapter. I found the author to be too forgiving of his grandfathers inability to see how horrible the Germans were. 2/3 through the book, the grandfather realizes the United States space program was built by Nazis and the US covered it up the fact they recruited Nazis to build NASA. The V2 was not a means to liberate people but a rocket carrying one message—death. I felt the author was trying to impersonate the writing style and voice of J.D. Salinger.