When some type of coating is applied to base paper it is called
coated paper. Coated paper is not called as fine paper. Fine paper
is bleached writing and printing paper.
Woodfree paper is the paper made without using mechanically
pulped fiber. Woodfree does not mean free of wood fibers.
Art paper is typically the paper used for high class multicolor
printing.
All coated papers can be categorized as fine paper, woodfree or
art paper but reverse is not true as all fine paper or woodfree
paper or art paper are not coated paper.