This document discusses how the right and left brains contribute to different cognitive skills. It provides several tests to determine if a person is right or left brain dominant, such as a color test where you read the color of the word rather than the word itself. It explains that the right brain is more creative, intuitive and visual while the left brain is more logical, analytical and verbal. While people use both, most are dominant in one side. It suggests exercises someone can do to flex the muscles of their less dominant side.