I am writing childrens books. Say I come here and choose and artist to illustrate for me. when I purchase x amount of pictures from an artist, do I now own them outright? So when I go and publish my book, do I give them credit, etc? Or do I simply own the images and that’s that?
As @kjblynx said. Its depends on the Sellers but its better for you to discuss the detail with the seller first and agree on the price for everything. 