Exclusive rights
An emerging art photographer wrote, “An author has asked to use one of my images for the cover of her e-book and for exclusive rights. She would also like to have a custom shoot (with a model), where she’ll have exclusive rights to the new images to use in advertisements for the book. I’m unsure as to what would be a fair price to charge for this.”
The Berne Convention of 1886 protects an artist’s copyright from the moment the work is “fixed” — that is, from the moment you make it.