Who is Phoebe and how does Holden feel about her?

Phoebe Caulfield, Holden Caulfield's pretty, redheaded ten-year-old sister, is straightforward and independent. She says exactly what she means She does not share Holden's disenchanted view of the world. Quite the opposite, she scolds Holden for not liking anything at all. Phoebe is perhaps the only positive force in Holden's life. He truly adores his sister.