China Mieville's Embassytown: https://en.m.wikipedia.org/wiki/Embassytown …
http://www.goodreads.com/list/show/22451.Science_Fiction_using_Languages_or_Linguistics_as_a_Plot_Device … Van De Meer's Southern Reach trilogy
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http://www.goodreads.com/list/show/22451.Science_Fiction_using_Languages_or_Linguistics_as_a_Plot_Device … Van De Meer's Southern Reach trilogy