This is very detailed but well written. Definitely read over the material first before you give to your child. Their maturity and curiosity in the topic needs to be there, but for my 10 yr old daughter, this is perfect. She’s really asking a lot of questions and this book answers them all - and then some. But it’s very fact based and informational and great for girls headed into puberty - giving them facts and treating them maturely. These kids talk so much at school!!! This book will help my daughter and I so much!!