What is the author's style in And I Don't Want to Live This Life by Deborah Spungen?

The book is written in almost a novel format, telling a story from beginning to end without flashbacks or backstory that confuses the plot. The book focuses only on Nancy's impact on the family, leaving other aspects of the family's life in the dark to preserve a figment of their privacy. Spungeon uses both exposition and dialogue, to tell the family's story not only in internal monologue like other biographies, but by telling story much like one might read in a novel.