©1970 by Judy Blume.

A teen classic. Full of terribly corny ruminations about boys, brassieres, and menstruation with some asides about theology that really work for me.
If I had grown up reading Harriet the Spy over and over I probably would have been much healthier and less self-conscious in my pre-teen years.
Margaret, the protagonist, is product of an interfaith marriage like myself. (As was also the case with me, she suffers considerable existential angst.) Anyway, the title stems from the fact that Margaret doesn't seem to know how to pray formally, and so devises her own manner of talking to God:

Are you there God? It's me, Margaret. I can't wait until two o'clock God. That's when our dance starts. Do you think I'll get Philip Leroy for a partner? It's not so much that I like him as a person God, but as a boy he's very handsome. And I'd love to dance with him...just once or twice. Thank you God.