Does anyone else find it to be creepy when a single-authored work constantly refers to the author as "we"? As in "the methods that 'we' are going to use in this book"? I just noticed this line: "For that reason we have tried to set the institutions of law and order in the context of..." He never says "I," and I find no evidence of a second author at all.
Multiple personalities? The research assistant did most of the work but gets none of the credit? The historian thought it's too informal to say "I"?