Consciousness is a phenomenon that puzzled many thinkers of the past in disparate fields, including theology, literature, art and philosophy, and continues to be a hot topic of debate at present. However, in the last few decades, the change of paradigm brought by cognitive psychology and the emergence of new techniques, which allowed the in vivo study of the human brain, have made the investigation of consciousness a respectable field of scientific research. This book discusses social perspectives of consciousness, as well as provides current research on psychological approaches.