Basic Okinawan: From Conversation to Grammar is a pioneering textbook by Rumiko Shinzato and Shoichi Iwasaki, intended to teach the Okinawan language to English speakers while not needing any prior Japanese knowledge. Released by the University of Hawaiʻi Press in May 2024, this all-encompassing resource focuses on fostering conversational abilities alongside a firm grasp of Okinawan grammar and vocabulary.

The textbook is structured into two primary sections. Part I includes ten units focused on the learner, gradually introducing grammar and vocabulary through the storyline of Niko, an American exchange student in Okinawa. Each unit presents authentic dialogues revolving around cultural topics, followed by straightforward explanations of grammar and vocabulary, a variety of exercises, and practical applications. At the conclusion of each lesson, cultural notes link language learning to a range of disciplines such as history, geography, literature, religion, and popular culture. Humorous and reflective anecdotes throughout the narrative invite students to explore Okinawan language and culture more deeply. Part II contains eight sections that further explain the grammar covered in Part I, organized by themes such as parts of speech and sentence structure. This organization enables students to review and consolidate their understanding of grammar from various angles. An appendix offers a detailed list of vocabulary and constructions, with references back to Part I. 

For more comprehensive learning, the authors recommend using this textbook along with Mitsugu Sakihara's Okinawan-English Wordbook. Additionally, an answer key for exercises and audio files for lesson dialogues are accessible online.