I honestly had no idea what this book was about going in, and I think it worked well that way. As it turns out, it was a political thriller: the protagonist is a negotiator between Nations of Earth and gamra. It’s roughly equivalent to, say, being Turkey’s negotiator to the EU for the membership talks. Only Turkey is a stronger version of the UN with full executive powers over the entire planet, and the EU is a trade coalition that regulates FTL interstellar travel.
Where it gets really interesting is the various non-humans involved. The rough layout of the galaxy features something like 95% of the entire population being various humanoids; there are some references to the fact that one of the member races of gamra is far more ancient than the rest and not only developed the FTL technology but used it to seed the galaxy with the various humanities. But each version of humanity had tens of thousands of years to diverge from one another, and you wind up with some really interesting cultural and even biological variations. The Coldi, the majority group within gamra, have some serious differences in how they treat one another and think about the world in general.
And that’s what makes the book so interesting – you’ve got a Eurosceptic-analog President of Nations of Earth, a novice diplomat without his cultural exchange attaché, and a negotiating culture based on a completely different style of interpersonal relationships and loyalty than anyone from Earth is used to. It’s fascinating looking at all the interactions, and the author has done an incredible job of taking one or two differences and seeing what happens when you let those differences influence things for a few hundred years. It’s an excellent read, and I couldn’t put the book down, so if you at all enjoy good science fiction or the occasional political thriller, give it a read.