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A detailed account prepared by a conservator documenting the condition of an artwork, including any previous restorations, present issues, and recommended treatments.

A surface appearance of something grown beautiful, especially with age or use, which can be an important aspect of its historical significance.

The process of returning cultural heritage to a known earlier state, typically as close as possible to its original form. It may involve cleaning, repairing and replacing missing parts.

A scientific technique used in art conservation to identify the components of colorants used in artworks, which assists in dating, authenticating, and formulating a conservation approach.

The process of restoring lost or damaged painting areas in a way that is unobtrusive, using colours that match the original paint as closely as possible.

A chemical treatment used to neutralize acids in paper materials, which can prolong the life of works on paper by reducing the rate of deterioration.

A pest control strategy used in conservation to prevent insects and rodents from harming cultural heritage objects. It involves monitoring, prevention, and minimum use of pesticides.

The amount of moisture in the air, expressed as a percentage of the amount needed for saturation at the same temperature. Control of relative humidity is crucial in preventing art and artifact degradation.

Brownish spots on old paper or artwork caused by mold or metallic impurities, and are often a concern for conservation.

The principles that guide the work of conservation professionals, including minimal intervention, reversibility, and respect for the original material.

The profession dedicated to the preservation of cultural heritage for the future. Conservators use various methods to prevent decay and repair damage.

The amount of light to which cultural heritage is exposed, which needs to be regulated to prevent damage from overexposure to light, particularly UV.

The loss of color in materials, often due to light exposure, that can affect artwork and requires careful lighting management to prevent.

Supplies and materials that are permanent, durable, and/or chemically stable and that are used to make or ensure the protection of artwork such as paper, adhesives, and storage containers.