Final answer:
Foreshadowing is a literary device that should be avoided in works of informational literature.
Step-by-step explanation:
The literary device that should be avoided in works of informational literature is foreshadowing. Foreshadowing is a technique used in fiction to hint at future events or outcomes. In informational literature, the focus is on providing factual information, so using foreshadowing, which introduces suspense or hints at future developments, would not be appropriate. Informational literature should strive to present information objectively and without speculation or anticipation.