All opinions, of course.
List what book you think best represents your personality type and its view of the world. While many of these can be your favorite book, they don't all have to be. Personally, I see this list skewing more toward the fiction side, but I'm having trouble seeing how it could be anything but a scientific treatise for an INTP. To start:
ENTP: The Sun Also Rises, Ernest Hemingway - A group of friends constantly traveling with one another around Europe, with the only rationale often being "well that sounds like fun!". Near-constant consumption of alcohol with the intention of boosting the experience. The two main characters are highly impulsive in nature, with Brett constantly seeking new relationships with other men because of the inability to consummate her relationship with Jake, even though for all intents and purposes they have consummated already. It is the emasculation and thus prevention of climax that creates the longing, not necessarily the need to be totally with one another. Jake's gregarious nature is tempered by a need to retreat and process information. By the end of the novel, the characters grow unnerved by their inability to see any of their great long-term ideas through, which is a reflection of Western society's inability to save the promise of the turn-of-the-century from the self-destruction of World War I.