From publisher blurb: The Humans are the newest species on the celestial block. Some view them as a breath of fresh air, while others view them as being the biggest threat the galaxy has ever seen. Now you can learn about the planets they’ve colonized, the systems that they couldn't colonize, and the systems that they hope will lead them to galactic colonization (conquest). The Ephemeris Encyclopedia Galactica will be a multi-volume collection looking at each sector of space. The Encyclopedia continues with Sector Ten (Human Space).