...or non fiction but not biographie.
Some novels have interesting artistes characteres and there analysis of the lives and processe of creation give a vivid insight on about it.
Just from some i can remember now.
Asylium By Patrick McGrath was enlighting is the psychological tendancies to pathologie that goes along with artistic work. From the isolation and searching that goes along with creation, the sensitivity unbalancing and the difficulty to a normal social life.
It single it out very clearly and i was a great help to me having it expressed so simply.
Anna Karenina By Tolstoy has a great section about painting and failure. Maybe one of the best analysis i ever read.
The Sea by Banville about Bonnard. It has been a while but i remember interesting parts.
Painting is to love again by Henry Miller in a non foction but light and, if a lot is a bit of an act ,some good reflexion there.
The Looser by Thomas Bernhard is more about genius and it's devastating and myterious powers. About revelation of one quality and status in creation (well interpretation has it stand there)
The Portrait of dorian grey so we can get it over ,thank you.
I missed a lot but i'll be curious to hear what it will bring from you.