Founded in 1956, the French psychiatric clinic La Chesnaie is an open and welcoming facility that houses about one hundred people of all ages. It provides traditional forms of care for people with serious mental illness, but it does so in a uniquely supportive environment where patients and caregivers participate equally in the day-to-day operations of the clinic. The driving force of La Chesnaie is the "Club," a nonprofit organization serving as a liaison between the clinic and the outside world. It arranges cultural and recreational outings for the patients as well as activities like concerts and exhibitions that bring the public to La Chesnaie. As a result, days at the clinic are quite lively and never routine. Author Aurelien Ducoudray and illustrator Jeff Pourquie immersed themselves for a time in the culture of La Chesnaie. Like everyone there, including the patients, supervisors, and caregivers, they took part in the daily chores of the clinic, cooking and cleaning. They participated in group events and even led a comics workshop to teach the residents about their craft. The Third Population is the engaging, inspiring, and often poignantly funny result of this project. The Third Population is a sensitive and uncompromising portrayal of daily life in this singular psychiatric health facility where patients are encouraged to build human relationships in spite of the difficulties that mental illness can pose. As the supervisors and caregivers take part in the daily activities of their patients, differences are erased and empathic bonds are formed, with the result that sometimes it is difficult to distinguish the patients from the caregivers.