Easel art is an art restoration- and art conservation term for paintings on canvas, wood or metal for instance painted with tempura, oil or acrylic. The umbrella term easel art helps art professionals to quickly classify it as something else than paper art or sculpture in terms of restoration practices. But the is so broad indeed that it covers art which has never been anywhere near an easel. E.g. works by Jackson Pollock, because they were painted on the floor.
An easel is an upright wooden support used for fixing a painting canvas or board usually at an angle of 20° to the vertical. Traditionally painters used easels to support paintings while they were working on them.
