Preservation is the act of protecting historical objects or places from damage. It is used in museums, archives, and heritage sites. The goal is to keep items safe over long periods of time.

Preservation methods include controlling light, temperature, and humidity. Fragile items such as paper or fabric are stored in special conditions. Buildings and monuments may also be repaired to prevent decay.

Experts such as conservators manage preservation work. Their efforts allow future generations to study and view historical materials.