The American philosopher, educationalist, psychologist, and theorist of art, religion, and democracy, John Dewey (1859–1952), has experienced quite a renaissance in recent years. There are no books, however, that approach Dewey primarily as a psychologist. This is what I shall do in the present text, although his psychology is intertwined with his philosophical, ethical, and educational ideas. These four areas of Dewey’s work are treated in the four main chapters of this book. It will soon become clear to the reader that this represents an analytical approach that is somewhat artificial but which hopefully provides some order to the huge production of Dewey. In reality, Dewey’s thinking always crisscrosses between philosophical, psychological, ethical, and democratic themes.