[ Photography ] Open Question : Is it illegal to use a photo of someone on a business card without their permission?


I’m a photographer and I’m in the process of making business cards for myself. On one side I have my personal info, and on the other I was going to use a photo that I took of somebody during one of my past gigs that showcases my style. However, a graphic designer friend of mine said that I can’t use a photo of someone on my card without their permission. Is this true?