Employees Must Wash Hands: A Bathroom Reader in Pictures

Finally, photographic proof of what's behind the public bathroom door.

Must Wash Hands, a collection of 120 artistic photographs, offers readers a peek into the private space of the public bathroom—that unspoken and indecent yet communal and necessary space that we enter and exit every day without a second glance.

With camera in hand, Carter Hasegawa travels the public bathrooms of Boston, New York, Seattle, Las Vegas, Honolulu, Indianapolis, and other American cities, snapping photos down ur...