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| Preface | |
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| Prologue | |
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| The Dream of Galileo | |
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| Evidence: Experiments of Nature | |
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| Introduction: Displacements | |
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| Cerebrum: In which is shown that the corticothalamic system generates consciousness | |
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| Cerebellum: In which is shown that the cerebellum, while having more neurons than the cerebrum, does not generate consciousness | |
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| Two Blind Painters: In which is shown that sensory inputs and pathways are not necessary for consciousness | |
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| A Brain Locked In: In which is shown that motor outputs and pathways are not necessary for consciousness, nor are they sufficient | |
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| Empress Without Memory: In which is shown that many brain circuits that help us see, hear, remember, speak, and act are not necessary for consciousness | |
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| A Brain Split: In which is shown that consciousness is divided if the brain is split | |
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| A Brain Conflicted: In which is said that consciousness can split if different regions of the brain refuse to talk to each other | |
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| A Brain Possessed: In which is shown that when cortical neurons fire strongly and synchronously, as during certain seizures, consciousness fades | |
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| A Brain Asleep: In which is shown that when cortical neurons can be on and off only together, as during dreamless sleep, consciousness fades | |
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| Theory: Experiments of Thought | |
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| Introduction: The Enigma of Consciousness | |
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| Galileo and the Photodiode: In which is shown that the humble photodiode can tell light from dark as well as Galileo | |
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| Information: The Manifold Repertoire: In Which is shown that the repertoire of possible experiences is as large as one can imagine | |
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| Galileo and the Camera: In which is shown that the sensor of a digital camera has a large repertoire of possible states, perhaps larger than Galileo's | |
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| Integrated Information: The Many and the One: In which is shown that consciousness lives where information is integrated by a single entity above and beyond its parts | |
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| Galileo and the Bat: In which is feared that the quality of experience cannot be derived from matter | |
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| Seeing Dark (Deconstructing Darkness): In which is said that darkness does not exist in a void but requires a context | |
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| The Meaning of Dark (Constructing Darkness): In which is shown that darkness is built of many nested mechanisms that specify what it is not | |
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| The Place of Light: In which is shown that an experience is a shape made of integrated information | |
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| The Garden of Qualia: In which is said that the universe is mostly dark, but the largest stars are closer than one thinks, if they are looked at with the proper instrument | |
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| Implications: A Universe of Consciousness | |
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| Introduction: Sparks and Flames | |
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| Nightfall I: Death: In Which is said that, if consciousness is integrated information, it dissolves with death | |
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| Nightfall II: Dementia: In which is said that consciousness disintegrates with dementia | |
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| Nightfall III: Dolor: In which is said that, if the quality of consciousness is a shape made of integrated information, it can be turned into the only real and eternal Hell | |
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| Twilight I: Consciousness Diminished: In which is said that consciousness can be present in the absence of language and reflection | |
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| Twilight II: Consciousness Evolving: In which is said that animals are conscious, too | |
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| Twilight III: Consciousness Developing: In which is said that consciousness must be present, to some degree, even before birth | |
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| Daylight I: Consciousness Exploring: In which is said that, by investigating nature, new qualia are discovered | |
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| Daylight II: Consciousness Imagining: In which is said that art and imagination invent new shapes within the mind | |
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| Daylight III: Consciousness Growing: In which is said that, by growing consciousness, the universe comes more into being, the synthesis of one and many | |
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| Epilogue: Three Late Dreams | |
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| Afterthoughts: Study Questions | |
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| Acknowledgments | |
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| Illustration Credits | |