Even before you look into that mirror to see if your headbow is straight or if your pettioat has enough poof, I recommend these three books to build confidence:
Fierce Style - This book surprised me as it was not only a fashion memoir/biography of the youngest Project Runway winner, Christian Siriano, but held down-to-earth, real advice (yes, really) on what to wear and how to wear clothes that flatter woman of all shapes and sizes. And you can find it at H&M, along Fifth Avenue, and of course, by Christian Siriano.
Eccentric Glamour - Ever walk by Barney's and see those window displays and wonder who is crazy enough to come up with them? Simon Doonan was the creative director behind those insane displays that bordered between fashion and modern art. In his latest book, his witty personality and bold confidence will surely convince anyone wanting to try their hand at Lolita fashion and just go for it.
Hungry: A Young Model's Story of Appetite, Ambition and the Ultimate Embrace of Curves - Crystal Renn is a model. And like all models she had to live up to the image of thin is beautiful. As a result she suffered from anorexia nervosa. Then she decided to just be herself and is now a size 12, happy, and still a sought after model. Hungry is her journey hungry to happy to be who she really is.
All of these books can be found in your local bookstore.