Judy Blume's career as an American writer spans four decades and includes many literary awards. She is most famous for her novels geared toward pre-teens. One notable example is Tales of a Fourth-Grade Nothing. However, Blume also has had success writing for an adult audience. Three of her novels for adults reached the New York Times best-seller list. In a 2008 interview Blume remarked, "I have so many stories left to tell!" By that time she had written nearly 30 novels. Judy Blume is an exceptionally talented and productive American author.

Identify the central idea of this paragraph.

Judy Blume has been a very busy and gifted writer. (explicit)
Judy Blume has been a very busy and gifted writer. (implicit)
Judy Blume has been writing for a very long time. (explicit)
Judy Blume has been writing for a very long time. (implicit)