Bhagavad-gītā is also known as Gītopaniṣad. It is the essence of Vedic knowledge and one of the most important Upaniṣads in Vedic literature. Of course there are many commentaries in English on the Bhagavad-gītā, and one may question the necessity for another one. This present edition can be explained in the following way. Recently an American lady asked me to recommend an English translation of Bhagavad-gītā. Of course in America there are so many editions of Bhagavad-gītā available in English, but as far as I have seen, not only in America but also in India, none of them can be strictly said to be authoritative because in almost every one of them the commentator has expressed his own opinions without touching the spirit of Bhagavad-gītā as it is.