Volunteers file in, as Karen McEwen slides her dark hair behind her ear and asks for help. She needs to get donated books out of her car.

She sorts the books, deciding if they are worth keeping or selling. She looks them up on the Internet, peering over the edge of her glasses while also fielding questions from volunteers.

"Karen, where can I find this type of book?" one of the volunteers asks. "Karen, they asked for this, but we don't have it," says another. "What should I send instead?"