In the second episode of Substance, our guest Edgar Heap of Birds, an Oklahoma-based artist and academic from the Cheyenne and Arapaho nations. For more than 40 years, the multidisciplinary artist has been advocating for indigenous communities and social justice through his works, which have been exhibited and featured in collections worldwide.

Bold conversations with a diverse group of artists, activists and collectives making a substantial change in the world today. SUBSTANCE is one of the many ways Collecteurs is activating its initiative titled SUBSTANCE 100, a new list focused on the power of change, rather than power itself. We believe the art world is capable of leading activists now and for generations to come. By engaging a community of activists from the art world and beyond, SUBSTANCE 100 raises the question, “what is the purpose of art in the 21st century?”