This document discusses critical thinking, including definitions, types of thinking, the components and benefits of critical thinking, and barriers to critical thinking. It defines critical thinking as the process of purposeful, self-regulatory judgment using evidence and reasoning. Some key points made include: critical thinking involves analyzing, evaluating, and making reasonable decisions; it benefits academic and workplace performance as well as daily life; barriers include uncritical thinking being common and critical thinking being difficult; and characteristics of a critical thinker are being open-minded, honest, and willing to welcome criticism.