Here is a critical thinking text that breaks out of a simplistic approach to critical thinking into a fresh consideration of two basic modes of thinking (linear and dialogical) and many different types of thinking, including linear, lateral, literary, meditative, metaphysical and historico-existential. Verbal argument is placed front and center as a dramatic form of expression in which the thinker creates his thought through dramatic dialogical social interaction. Thinking is seen as a form of acting. An extensive number of excerpts from contemporary sources makes this text historically and pedagogically relevant.