For the past three months, photographer Martin Schoeller—known for his tight portraits of President Barack Obama, Jay-Z, and anyone else you’ve heard of—has been posting pictures of homeless Los Angeles residents to his Instagram account. Each photo is captioned with a short interview or a quote from his subject and a request to donate to the #SycamoreandRomaine Campaign. (Read more about his subjects in our previous story.)

“I’ve been photographing people living on the streets for many years,” says Schoeller. “Actually, I was always fascinated by this theme.” At the same time, he says, “I always thought I should do something on Instagram—I just never knew what to do. I didn’t