This book deals with a young girl's issues with going to a new school, making friends, and natural curiosity of the maturation process. It deals with peer pressure, young girls anxiety of their body image, girls friendships and competitions, religious discoveries, and discovering boys.
Basically, "are you there god its me Margaret" is about the trials and tribulations of growing up and entering adulthood. From Margaret's first bra to her first kiss, Judy Blume shows the concerns and thoughts of a young woman trying to navigate her world as it changes. A good summart is found here:
You can find the summary in the link below: