which writer has the highest number of completed work Anne Perry or Judy Blume?
Judy Blume Judy Blume (born Judith Sussman; February 12, 1938) is an American writer known for children's and young adult (YA) fiction. Some of her best known works are "Are You There God? It's Me, Margaret" (1970), "Tales of a Fourth Grade Nothing" (1972), "Deenie" (1973), and "Blubber" (1974). "The New Yorker" has called her books "talismans that, for a significant segment of the American female population, marked the passage from childhood to adolescence."
Leonora Blanche Alleyne Leonora Blanche Lang (née Alleyne) (1851 – 10 July 1933) was an author and translator. She is best known as variously the translator, collaborator and writer of Andrew Lang's Fairy Books, a series of 25 collections of folk and fairy tales for children published between 1889 and 1913. The most well-known of these were Andrew Lang's Color/Rainbow Fairy Books, a series of twelve collections of fairy tales each assigned a different colour.