"Whipping Girl" is not a light, airy autobiography, so if that's what you're looking for, go elsewhere- there are many wonderful ones. Rather, Julia Serano dives headfirst into some deep issues and instead of repeating the same old tired mantras, proposes new theories and different interpretations.
I found myself reading with my highlighter out because I was consistenly blown away by some of the arguments and insightful comments Serano made. Her very background makes her the perfect analyst: as a biologist, she has the foremost knowledge on scientific reasons for transsexuality and related subject matter, as a transsexual woman she has an intimate knowledge of the effects of both testosterone and estrogen, and of how society treats men and women. Feminists, students of gender, or just the average lay person could all benefit greatly from this book, in my opinion.
The reading can sometimes be a little dense- while much more readable than most, it still is primarily an academic text. And sometimes Serano can come off a bit cold and distant- not angry (or when she is, I believe it to be justified), but not exactly a warm and cozy narrator that draws teh reader in. Still, to me, that's a small price to pay.
All in all, it's something you have to read. But I thoroughly anticipate that this book will be revolutionary- a new, fresh perspective on feminism, transsexuality, and the queer movement.
Read it!