The nonfiction category of books is vast including everything from health and wellness to cookbooks. Narrative nonfiction specifically includes genres such as history, journalism, and memoir. No matter the genre, writing a good book is the most important element, per One Signal's Vice President and Publisher Alessandra Bastagli. Because the nonfiction category covers such a broad range of genres, it can be very competitive. She encourages authors to be aware that when they publish in the nonfiction space, they are competing with the latest celebrity memoirs or with books on the latest diet fads or other trends.