In school, I used to get assignments to pick a "hero" and write about them. I wish, at that time, I'd had this book.
The obvious choices were George Washington, Abraham Lincoln, maybe Gandhi if you were excited about more recent history.
(Side rant, but what's up with the heavy focus on the American Revolution and Founding Fathers in our education system? I didn't get to learn about anything post-pioneer times until junior high. And what a weird slant, at that: I, a girl of native heritage, always wanted to be one of those pioneer women venturing out where "people hadn't gone before".)
I never had a specific hero from history I looked up to. Somehow, I couldn't identify strongly with any of the (old white American male) heroes. I specifically picked a woman, not out of some nascent feminism, but because it didn't seem likely that I'd grow up to be a George Washington. There was nearly nothing I could identify with.
I had two books that someone gave me: one, on Helen Keller's teacher, and the other, on Elizabeth Blackwell, the first woman doctor. The books were okay, and I didn't care especially about these women's causes. But that's who I picked to write about. I didn't know of any other famous women worth looking up to.
Rad Women A-Z would have been great for me to own at age six or eight. Reading it now, even though it's clearly written for kids, I'm still inspired and impressed. I would have picked a favorite: Nellie Bly, perhaps, a rebellious woman who knew how to write. Or the Grimke sisters, who spoke out often in active defiance.
I don't identify with all of the women in this book, and that's great. I get to identify with a few of them by their qualities, their actions, and the stories they created by living radical lives. I don't have to be inspired by all of them, because now there's a whole set of interesting women to choose from. And they're all, indeed, rad.