Hmm I guess it depends what information or level of information you want from your book.
I have the Female Cyclist and its Ok but for me I found a lot more info I needed from books like Andy Pruitt's Complete Medical Guide for cyclists or Bicycling Magazine's The complete book of Long Distance Cycling.

I know these are not women specific books but they provide lots of great info for both men and women.

Ooops nearly forgot another good read is Bicycling Medicine by Arnie Baker. This one was recommended to me by SadieKate and is jammed full of great info.