Philosophy: History, Ideas, Theories, Who's Who, How to Think… (edition 2007)

Philosophical questions include some of the most exciting, puzzling, and important questions ever asked.

From the work of the French psychoanalyst Jacques Lacan she develops the idea that the unconscious is structured like a language, and distinguishes between what she terms the "semiotic"—that which is instinctive and sensual, originating in prelinguistic infant development—and the "symbolic"—the rule-governed system of signs of the mature language-user in which words correspond with meaning.