How did 16th century Venetian painters vary their ground layers to create different effects?

How did Venetian painters of the 16th century use canvas supports and oil medium to create a new kind of painting?

How have natural aqueous media been used over the centuries, including by one of the most famous artists of the 20th century?

What can be done to reinforce a degraded canvas support of a painting, and how can that change that painting's look?

How does paint made from animal glue and different blue pigments work, look, and age?

What is the canvas of a canvas painting, and why and how was it used?

What's the story of the painting of the Just Judges panel now on display in Ghent?

Where is the Just Judges panel of the Ghent Altarpiece?

What happened to the Ghent Altarpiece between 1566 and 1934?

What is the Ghent Altarpiece, how was it created, and what changes did it undergo in the first 125 years of its existence?