Final answer:
The main genre that the author writes is biography and memoir, which falls under the category of creative nonfiction, focusing on true stories told with a narrative structure similar to fiction.
Step-by-step explanation:
The main genre that she writes is biography and memoir. This genre is a part of creative nonfiction, which focuses on compositions that are true and based on real-life events, yet are narratively structured much like fiction. Authors such as Sebastian Junger, Jon Krakauer, and Terry Tempest Williams have contributed notable works to this genre with books like The Perfect Storm, Into Thin Air, and Refuge. Biography and memoirs are distinguished by their exploration of personal narratives and reflections on life experiences, often delving deeply into an individual's life story and personal insights. Unlike other fiction genres such as mysteries, science fiction, romance, or fantasy, which are primarily created from the imagination, biography and memoirs focus on factual storytelling based on the author's or other real people's lives.