The phrase "A book is a loaded gun in the house next door. Burn it!" Is an example of the literary term...........?

The phrase "A book is a loaded gun in the house next door. Burn it!" is an example of a **metaphor**. It compares a book to a loaded gun, suggesting that books can be dangerous or harmful, using one concept to represent another without using "like" or "as," which would indicate a simile.