Between 2013-2017, I was the director of Hong Kong Design Institute (HKDI) Design for Social Innovation and Sustainability (DESIS) Lab and we had run over 20 projects focused on design and openness. All these projects were recorded in this book, Open Design in Action! Open Debates and Projects for Our Open Society. Projects were divided into three categories of ‘open language’, ‘open minds’ and ‘open hearts’; which are also the framework the lab tries to purpose for an open society through design. It demonstrates the attempt to explore different aspects of openness through design actions.