The type of the novel the 2012 American coming-of-age drama film The Perks of Being a Wallflower is based on is a novel written in what form?
The Perks of Being a Wallflower (film): The Perks of Being a Wallflower is a 2012 American coming-of-age drama film. The Perks of Being a Wallflower (film):  An adaptation of the 1999 epistolary novel of the same name, it was written and directed by the novel's author, Stephen Chbosky. Epistolary novel: An epistolary novel is a novel written as a series of documents.
a series of documents