The Information Age is quickly becoming an age of misinformation with substantial personal and societal consequences at stake. Unfortunately, as we grow up how we learn to think usually falls short of what we define in this book as “critical thinking.” And where critical thinking is lacking, social justice finds little traction. It is indeed a crisis of critical thinking that imperils us all. We believe that critical thinking, while an innate capacity of the human mind, must be learned and practiced. Throughout this book we will refer to the activities of national and international organizations, political and economic, in relation to the crises of the Commons. The goal is to encourage the student to take responsibility for developing critical thinking skills: question, remain curious, and seek out evidence to support important conclusions and to act on the injustices we see, connect with, and experience.