I hadn’t heard of this one, and when I picked it up from the library, I realized that it was an American Girls book. I don’t believe that a doll went with it.
It was a cute book with good information. I managed to get through this stuff, periods, hand washing, using deodorant, etc, without the book. So did my children.
If your kid is into the American girls dolls, I can see how this would be helpful. Otherwise, just common sense instructions would work.