#puberty

My 10yo daughter is at the cusp of puberty but not interested. How can I prepare her?

My 10yo daughter doesn’t seem very interested lately in talking about puberty and changes in her body etc. We started reading a book about that for a while and she was fine and interested. Lately when I approach the subject it’s like she doesn’t want to let go of being a little girl.
How do I respect her timing but also prepare her?