It never helps historians to say too much about their working methods. For just as the conjuror’s magic disappears if the audience knows how the trick is done, so the credibility of scholars can be sharply diminished if readers learn everything about how exactly their books came to be written.

nother factor militating against completeadvice was the notion that methods should be kept secret to be most effective.One author of a university thesis on the topic noted that most scholars were un-willing to share their secrets on note-taking with others. A few advice givers rec-ommended “keeping the secrets of your studies to yourself ” on the grounds thatpeople would be most impressed by achievements that they did not understand.39