The Word For The World Is Forest - Ursula K Le Guin
The Word for World is Forest is a science fiction novel by Ursula K. Le Guin, published in 1976 and based on her 1972 novella. It is part of the 'Hainish Cycle'.
Several centuries in the future, humans from Earth have established a logging colony and military base named "New Tahiti" on a tree-covered planet whose small, green-furred, big-eyed inhabitants have formed a culture centered on lucid dreaming. Terran greed spirals around native innocence and wisdom, turning the ancient society upside down.