Hi All, I've had interest in one of my photos on Flickr, and they are asking if they can buy 'non-exclusive rights' to it. What exactly does that mean? Use once only? Never sold a photo before. Have had plenty of interest before, but they usually want it for free, and I just ignore them. This is going to be for a 'baby board book', and have said: 'We use royalty-free images for our books but would offer you a flat fee of $50 for the high resolution image.' Any help in this matter much appreciated.