Some features of nonfiction text are third-person perspective and logical structure that supports facts. The third-person perspective is more appropriate for most nonfiction because it establishes a more formal and authoritative tone.
Nonfiction texts often present thesis ideas, then present details to clarify, expand upon and support the validity of the thesis. Nonfiction writers often present information in a format of cause-and-effect or comparison-and-contrast. Also, when intended for reporting or educational purposes, nonfiction tends to avoid bias or opinion. However, nonfiction can also be used to persuade readers to take an action, such as buying a product or joining an organization.