These lessons are the most "user-friendly" that I have seen for home study. The only real drawback that I found was that I had to wait the extra few days for the delivery of the accompanying cassettes, because the cassettes and the text are sold separately. These should be packaged together. Even if you only anticipate learning to read and write Lakota, knowing the sounds unique to the Lakota language are essential to grasping the meaning of the written word. The author tells us, "Lakota must be written based on sound." Make sure you order the cassettes and the book!