I admit that I haven't read any books by Judy Blume, but I am very aware of her importance to young girls, at least in the past, and of the frequent efforts to ban her books. Her own website says: "Judy is a longtime advocate of intellectual freedom. Finding herself at the center of an organized book banning campaign in the 1980's she began to reach out to other writers, as well as teachers and librarians, who were under fire. Since then, she has worked tirelessly with the National Coalition Against Censorship to protect the freedom to read."
Judy Blume grew up as a secular Jew: "Blume has described her childhood home as culturally Jewish rather than religious. Her father had six brothers and sisters, almost all of whom died while Judy was growing up, and she has said, "a lot of my philosophy came from growing up in a family that was always sitting Shiva.'" (Judy Blume)