How does the author use flashback in the novel, Veronica?

As Alison goes from present day to flashbacks in the story, she still maintains the first person narrative point of view. The story is hers, and the reader will learn only what the author wants him or her to learn. The first person narrative point of view tells the narrator's story and the reader must take into account who the narrator is to understand the perspective. For example, a child will see a story from a different perspective from that of an adult. The reader should make allowances for that. In this book, the story is told from Alison in the present day as well as Alison in former stages in her life that reveal who she was during those time.

An example of the first person narrative point of view is when Don states, "Because we sold flowers outside bars and go-go clubs, prostitutes were some of our best customers; the nice ones bossed their johns into buying from us. Most of them weren't beautiful girls, but they had a special luster, like something you could barely see shining at the bottom of a deep well. They treated us like little sisters, and we were tempted to join them when men came around looking for 'models'--which everybody knew meant stripper or whore."