PA System (Alexa Hatanaka and Patrick Thompson) works in textile, printmaking, painting, video, and public art.

PA System creates collaborative and socially-engaged projects in the high arctic, including their ongoing project with Inuit youth in Kinngait (Cape Dorset, Nunavut) called Embassy of Imagination. 

PA System exhibits their work in institutions worldwide, such as the Royal Ontario Museum, Centre de Cultura Contemporània de Barcelona, University of New Mexico Art Gallery, and the Guanlan International Printmaking Base in China.