Two weeks before his death, Oliver Sacks outlined his plans for the last book he would oversee, The River of Consciousness. As an eminent neurologist and highly regarded throughout his life for his far-reaching examinations of the human mind, this book marks Sacks' magnificent return. Known for his investigations into the brain, this is Sacks' chance to explore his fascination with questions posed by all the sciences. It is this unending passion and appetite for investigation that Sacks will be remembered for and which informs a work that explores not only the nature of the human mind but of all life. Sacks seeks the companionship of some of the greatest scientific minds we know and his own personal