A good method of learning, progressive, with clear explanations and varied vocabulary. Warning, the focus is clearly on oral practice of Cantonese. If all the texts are presented in traditional Chinese characters, nothing in the book will sensitize you to writing or to the stroke order, for example. I share a previous comment on the fact that it lacks a more visual presentation or graphic tones of Cantonese, especially as used transcription (numbers) requires an adaptation effort less obvious that the accents used in pinyin for example.
