So, I've gotten tired of people asking me if I have business cards when I taken photos at conventions, so I decided to order some cards from Moo because you can have them put different photos on the backs of the cards, so I picked out 15 photos (5 of cosplayers, 10 of artwork), and populated the text side with contact info. For photos of a person(s) on the backs of these cards, is it a good idea to get permission (if possible) from the person before passing out the cards? I have way many photos, and don't necessarily know the person(s)'s name in the photos. I was modest with just 5 different people photos in the batch this time so it's not a lot of people to contact (if possible), but I imagine I'll order more in the future and upload newer photos of people then. Of course this idea occurred to me after I submitted my order to Moo last night. Doh! The photos used on the cards are all taken be me, or the artwork used was created by me. I was thinking photographers own the copyright on their photos, though model releases are required for publication, but I was wondering if that was the case for tiny images on personal business cards.