This is a clear, concise, information-packed book for learning Cook Island Maori, a Polynesian language spoken on Rarotonga and many other nearby islands. Purchased for a planned trip that later got scrapped, I kept the book and have studied the language a bit. Of course, I don't have the cassette that goes with the book, and that is my "but..." from above. While the description states a cassette comes with the book, it only comes with the hardback (out of print) and not this edition. Great book with useful information. If you're going to the Cook Islands get it.