This document discusses different types and theories of thinking and problem solving. It describes thinking as using inner representations of objects and events, whether real or imagined. It outlines different types of thinking like directed, critical, and creative thinking. The document also discusses two theories about the location of thinking in the brain and contrasts peripheralists who believe thinking occurs through movement versus centralists who believe thinking occurs inside the brain. It provides definitions and processes for problem solving, creative thinking, and higher mental processes like autistic thinking and dreams.