Intentional language creation is a mainstay of the modern world, having gained widespread notoriety in popular television shows and films, and even finding a home in academia in the form of undergraduate courses on invented languages. In this paper, we argue that constructed languages deserve more careful consideration than they currently receive either inside or outside academia. We provide guidelines for developing evaluative criteria to be used with constructed languages of various types and ask readers, whether academics or not, to consider the role they play as audience and critics in the unfolding of a new art form: the art of language invention.