In an age in which information is available almost instantly and in quantities unimagined just a few decades ago, most educators would agree that teaching adult learners to think critically about what they are reading, seeing, and hearing has never been more important. But just what is critical thinking? Do adult learners agree with educators that there is a need to think critically? What types of skills does a critical thinker possess? Can these skills be taught? If so, what are some strategies that educators can use to teach these skills? The purpose of this paper is to attempt to answer these questions before concluding with a proposed model of best practices for teaching critical thinking to adult learners. (Contains 1 figure.)