Mirage – Julie E. Czerneda
The books seems to have a plot - the Library is at the center of an interstellar intrigue - but the book is primarily a cross-species comedy of manners. Scholars from numerous species meet peacefully at the Library, but you never know when one will mistake another for lunch. At the center is Esen, who is a centuries-old expert on other species, but who is also an impulsive child who is constantly getting into trouble.
The book is good, but not outstanding. I had a hard time pushing through the middle, which was a bit too full of chaos, and a bit too dependent on the triumph of good intentions.