As a girl, I lived vicariously through Nancy Drew. She might have been my first heroine: adventurous, curious, smart, and with friends (Bess and George) who were her equal. Girls need role models with those characteristics to form a healthy sense of self. I certainly needed it. I still have the books I had when I was in elementary school, gave them to my daughter when she was old enough to read them.
Carolyn Keene was a pseudonym for many ghostwriters.