This book offers alternative ways of thinking about reality and ourselves. We’ve all been taught to think in certain ways, and those ways of thinking do not seem to be sufficient to meet the many challenges that our world is currently facing. In these pages you will dive into the most fundamental questions of human existence. Who are we? Can we trust our senses? How can we know anything at all? The exploration will be viscerally full of lively explanations and vivid examples. This is a guidebook for inquiry full of upending questions that will shift how you see things. It does not tell you what to think. Instead, it gives you some important and fascinating things to think about. Along the way you will explore some crucial philosophical ideas, especially those developed by the classical American philosophers Charles Sanders Peirce, William James, and John Dewey. You will discover how exciting philosophy can be and why it is so important that each of us think deeply about our own lives.