For as everyone knows, whether consciously or not, there’s always a kind of unspoken contract between a book’s author and its reader; and the terms of this contract always depend on certain codes and gestures that the author deploys in order to signal the reader what kind of book it is, i.e., whether it’s made up vs. true. And these codes are important, because the subliminal contract for nonfiction is very different from the one for fiction.
