How do working people collaborate to put their skills, capacities, and creativity to practice at and for work? How do we participate at work? What are the practitioner communities that bring together our creativity and productive capacities? How do communities of practice form and how can they be fostered in for-profit, public and quasi-public, and non-profit and social economy organizations? This participatory, presentations-based, and experiential learning course will see students and practitioners from the field delve into the different ways communities of practice and practitioner communities form in different workplace settings, how they may thrive, how we learn in them, and the issues that might challenge them.