The world in which we live is a world of differences. When we disregard differences, we generalize. When we generalize inappropriately, we stereotype, forming biases and prejudices. Troubles inevitably follow. We need to learn how to more critically differentiate, or discern, between what happens in our lives, how we respond, and how we think-and-talk. This book explains and applies the principles of General Semantics to promote an ongoing awareness of differences that make a difference.