Conversation so far:
When did Peters write Bernadette Peters's first childrens book?
2008.
How many books did Peters write?
The third book, released in 2015, titled Stella and Charlie Friends Forever.
What is stella and charlie friends forever about?
about her rescue dog Charlie joining her household, and how Charlie got along with her older dog, Stella.
What other books did she write?
Stella is a Star, the book includes a CD with an original song.
Is she a successful writer?
The book reached #5 on The New York Times Children's Best Sellers: Picture Books list for the week of June 8, 2008.

Question: What is Stella is a Star about?
Self-contained rewrite: What is the book Stella is a Star about?