Hello, I am a painter, not an illustrator, but a publisher has asked to use one of my paintings on the front cover of a book. I have no idea about the legal and financial implications of this kind of procedure. I don't know how much I would charge to them for use of it. Would they actually buy the physical painting and use it as they wish, or would I charge them a lesser amount to use the photograph? I normally sell a painting of this kind for about £750. They are not a large publisher so I'm not able to charge through the nose. How much do illustrators usually charge for doing a book cover? In a way I'm not sure whether to let them use it at all as they want to slightly change the image and add text, I'm worried that it's cheapening my work by letting them mess about with it! Any general thoughts and suggestions of prices would be greatly appreciated.