The FSI Igbo Basic Course is based on the speech of two members of the Ezinehite group of Igbos in Central Owerri Province between the towns of Owerri and Umuahia, Eastern Nigeria; their speech is representative the dialect called "Central Igbo". The course materials consist of four 1) Tone Drills - a set of seventy-five exercises on the recognition of tone distinctions and patterns; 2) twenty-four units (1-24) a. Dialogues, b. Notes, and c. Drills; 3) six units (25-30) containing a. Dialogues, and b. Short Narratives.; and 4) Vocabulary. The course includes a printed book and an audio MP3 CD.