If you mean 'Writing' as in being a author or writing a book that is a 'Fine Art'. Performing arts is when you have to perform them and writing a book is not performing.Thanks
Visual arts is things you might see in an art gallery, such as statues or paintings. Performing arts is usually with the body, things like singing- live, not listening to a CD- dancing and acting...
Yes it is. Pop art is included in art history text books, and judging by the latest auctions where art works by Roy Lichtenstein and Andy Warhol have sold for higher than expected amounts.