Anastasia's Chosen Career by Lois Lowry [FIRST PAPERBACK PRINTING] 1988

Anastasia Krupnik has exactly one week to work on her school assignment called "My Chosen Career". Determined to be a bookstore owner, she must first develop poise and self-confidence. So Anastasia takes the plunge and spends her life savings on a modeling course at Studio Charmante. She has one week to interview a bookstore owner, write a report, and complete her modeling course. Luckily, her new friend Henry is with her most of the way. Is Anastasia destined to be a successful bookstore owner or a glamorous model? Only Anastasia has the answers!