Deceiver by C.J. Cherryh is another of my recent sci-fi reads and reminded me of how much I enjoy her facility at world-building. Fortunately, in addition to all of the greats who formed the basis for science fiction literature today, there are plenty of wonderful authors who continue expanding our universe with their vision. Ms Cherryh peoples her Foreigner series with humans and aliens who have a very strict system of interactions that are gradually altering their perspective of each other's society. There are so many dangerous pitfalls possible due to ignorance of mores and conventions and it is virtually impossible to completely mimic the body movements and expressions but that adds to the complexity of the universe being described. It takes awhile to immerse oneself in the society, especially if it has been several years since reading previous books in the series but it is well worth the effort. It was a little irksome but not unexpected to have the political machinations unresolved by the end of the book but fortunately the sequel, Betrayer, is already published and #13 in the series, Intruder, is to be released in March of this year. My Night Owl Review is at this link
Those who enjoy this series should also look for Cherryh's Chanur series, her Cyteen books are very intense and she also has a nice fantasy series with a 'Fortress' theme.