Are these invites common? You give up your copyright control and Getty can sell them to any company that pays, even if they make a product you wouldn't endorse. I know that for many that isn't a factor at all, but for me it means I'll very likely decline the invite. It likely goes without saying, but if you are a library and you get an invite like this, you'll likely want to decline the invite for myriad reasons. ESPECIALLY if there are patrons in the pics (though they require model releases for individuals in pictures).