"The Essence of Yoga" by Bernard Bouanchaud
"The Essence of Yoga" by Bernard Bouanchaud in my training data up until September 2021. It's possible that the book was published after my knowledge cutoff or it may be a lesser-known or niche publication.
Bernard Bouanchaud is a name associated with yoga, and he may have written books or articles on the subject. However, without further information, it's challenging to provide specific details about his work or the content of the book you mentioned.
If "The Essence of Yoga" by Bernard Bouanchaud is a recent publication or a lesser-known book, I recommend checking online bookstores, libraries, or conducting a web search to find more information about it. Additionally, you can explore other well-known books on yoga written by authors such as B.K.S. Iyengar, Pattabhi Jois, Swami Sivananda, or T.K.V. Desikachar, among others, which provide comprehensive insights into the practice and philosophy of yoga.