Trade School is a self-organised, alternative learning space that runs on barter. It was started in 2010 in New York’s Lower East Side by Rich Watts, Louise Ma, and Caroline Woolard of OurGoods.org, a creative barter network. Over 800 students participated in 76 single-session classes during 35 days. Anyone can teach a class, and students sign up by agreeing to meet the barter requests of teachers.