I too found this book of very little help to me in learning the Yoruba language. The first 70 pages focus solely on tones and if you do not buy the cassettes then they are very difficult to study. The vocabulary is strange and random- words like intestinal worms and walking stick are taught. I found the book 1-boring and 2-hard to follow. I found the grammar explanations very random and unorganized. This book was not helpful for me and now I am looking to buy another...