This book was really eye-opening. I went into it knowing that women are paid less and knowing that women don't negotiate as much or as well as men usually do. Coming out of it, I've got a new sense of both power and lack of it.

The book is backed by hundreds of case studies and research, and I often read those cases thinking, "I would never have done what she did," or "Why did she give up so easily?" and to some extent, I still wonder that. Why would a woman say, "Nevermind," during a talk about a promotion, just because her boss didn't immediately say, "Here, have 100% raise!" It's both baffling and unnerving to realize that I, and most other women, have been raised to do that very thing.

I recommend this book for every woman. It may not give you all the tools to overcome this divide between the genders, but it will show you just how profound that divide is, and knowing it's there can go a long way towards decreasing the span.