I've got Native Tongue on my shelf, which is notable for having a language embedded in the story that can be spoken. What else should I add to my reading list? I'm in particularly looking for books with developed languages, not just a few exotic place and character names added for flavor.
UPDATE: A language is well developed when it has a dictionary (or reasonably complete glossary) and reference grammar--or more likely--a few pages outlining how to string the words together.
(This question is copied verbatum from the Example Questions on Area 51)
And I don't see the community wiki button. I suspect thisThis is anow community wiki sort of, I'm sure there will be more than one question that could be marked as the answer.