From master language creator David J. Peterson, creator of Game of Thrones' (HBO) Dothraki language, comes a creative guide to language construction. Peterson begins with a brief history of constructed languages, from Tolkien's creations to Klingon to the thriving global community of language construction. Then, using examples from a variety of languages including his own creations, Peterson offers a captivating and lucid overview, providing a basic foundation of essential linguistic tools for inventing and evolving one's own lexicon.