I like this article a lot. Also I believe that having a good posture gives me confidence.
But you have to update your views on power posing which was claimed to be unfortunately false by the co author herself. - http://faculty.haas.berkeley.edu/dana_carney/pdf_My%20position%20on%20power%20poses.pdf
Having read the book myself, it was a letdown. But now i’m more conscious about data/stats being presented anywhere.