Does anyone have any technique or book which they would recommend for developing a more authoritative yet still feminine image at work? I don't mean just appearance, I mean more to do with how you speak and project yourself. I have been encouraged to project myself in a more confident and self-assured way, and I think that the advice is good. I know that I am very competent, but instead of wowing clients, I am quietly getting things done without dazzling. A big in-your-face macho show-off style will never be right for me, but I know that there is room for improvement here, still in a feminine way, but in a more impressive way. What has worked for you?