Begun while he was a Visiting Scientist at MIT, Justin Leiber's first novel, "Beyond Rejection", starts with a lengthy description of a “mind implant” operation in which the software mind of one individual is inserted into the hardware brain and body of another. Provocative and detailed, the description has been anthologized in several text books, most notably in Douglas Hofstadter and Daniel Dennett's The Mind's I. The novel's protagonist, with memories of a male body, awakens to a female one and must find a way beyond rejection. In "Beyond Humanity", the protagonist deals with the claims to personhood of both apes and computers – themes that Hackett Publishing suggested might also be incorporated into a dialogue, "Can Animals and Machines Be Persons?" In "Beyond Gravity", Leiber's protagonist discovers that earth has long been studied by alien “anthropologists,” who write articles about humans which appear in a journal whose title might be translated into humanese as “Primitivity Review.” As this description suggests, Leiber's Beyond trilogy is largely taken up with issues in philosophy and cognitive science. The same might not be said of Leiber's sword and sorcery novels "The Sword and the Eye" and "The Sword and the Tower".