This is a volume in the "Thinking about Thought" series which provides a comprehensive and up-to-date overview of Cognitive Science, Neurobiology, Linguistics, Philosophy of Mind, Artificial Intelligence, Quantum Physics, Relativity, Thermodynamics, Evolutionism, theories of dreams, theories of emotions and theories of consciousness. This volume contains the following chapters: 1.Dreams 2.Emotions 3.The History Of Consciousness 4.Consciousness: The Factory Of Illusions 5.The Physics Of Consciousness 6.The Self And Free Will