<< Uh... What's a blue book (I won't be in college until this fall) >>
A blue book is an exam booklet with blank sheets of paper stapled together in a book of about twenty or so pages with a blue cover on it (hence the term blue book).
The blue book is also where you regurgitate all the nonsense that your Literature, Philosophy, or History professors have been filling your head with without questioning the underlying presuppositions of their world view. You fill up many blue books in a college career. When the pile gets large enough they give a degree.