Edwin T. Layton’s biography ‘And I Was There’ is a must read for background info on Pearl Harbor and Midway. In addition to intelligence information, Layton lays out the Naval bureaucratic infighting that got Joe Rochefort transferred to a dry dock command on the West Coast after his brilliant work predicting the Japanese attack on Midway (the worst sin is being right in the eyes of bureaucrats). Layton’s book shook things up to the extent that Rochefort finally got the official recognition he deserved, albeit in the 1980s.