We’ve all been there. You’ve been Christmas shopping for weeks, scouring the stores looking for just the right gift for that one impossible-to-shop-for friend, when your eyes light on a brightly colored, snappily titled tome in a stack of books by the register. In an instant, you know two things: 1) this is a decidedly useless book, devoid of any literary or substantive value; and 2) it’s pretty funny, it’s vaguely clever in a cynical, pop-culture-saturated way, and you are unquestionably about to buy it for your friend.