Are You There God? It's Me Margaret..

1970 book by Judy Blume, typically categorized as a young adult novel, about a girl in sixth grade who grew up with no religion. Margaret's mother is Christian and her father is Jewish, and the novel explores her quest for a single religion. Margaret also confronts many other pre-teen female issues, such as buying her first bra, having her first period, coping with belted sanitary napkins (changed to adhesive sanitary pads for recent editions of the book), jealousy towards another girl who has developed a womanly figure earlier than other girls, liking boys, and whether to voice her opinion if it differs from those of her friends.