Reviews Language: The Cultural Tool by Daniel L. Everett Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Science News April 20, 2012 at 11:27 am A linguist who spent three decades among the Pirahã people of Amazonia presents language as a human tool that can be reinvented or lost over time. Pantheon, 2012, 351 p., $27.95