I have a buyer requesting a video (and has now just ordered). The text for the video is about 99% from a book. Though they have said they have permission, how can I be sure before working on it to ensure I don’t do anything against copyright laws (author is no longer living but it hasn’t been 70 years since then). It might be fair use under “studies” but since 99% of the video would be an excerpt from that book I’m not sure fair use would cover it.
What should I do about the order - and to confirm that all permissions re: copyright are okay?
EDIT: It’s okay. He has described how he has permissions so there shouldn’t be any copyright issues with it.