In Practical Thinking de Bono’s theme is everyday thinking, how the mind actually works—not how philosophers think it should. Based on the results of his famous Black Cylinder Experiment (a critical thinking task that asks participants why they think a black cylinder falls over), de Bono explores the four practical ways of being right. From there he picks out and names the five levels of understanding—and the five major mistakes in thinking. From memes and Instagram to Twitter and bestselling books like Mistakes I Made at Work, mistakes—and what we can learn from them—are a hot topic. With Edward you’ll learn exactly why we all make them.