Encouraging kids to be curious, to imagine, and to ponder, the questions presented in this book are an introduction to ourselves. What am I made of? How do I know I'm real?Will I still be the same person at eighty? Following up on the success of Really, Really Big Questions, and Really, Really Big Questions About God, Faith, and Religion here comes an entertaining book that explores the important, weird, and sometimes metaphysical questions that children have about themselves. From the physical - Why do I like chocolate? How does my brain work? - to the philosophical - Is my memory what makes me? Is there life after death? - this book takes on the deeper questions that come with growing self-awareness. Throughout it all, humorous writing, funky art, and fun features like optical illusions, amusing stories, quotes, and mind-teasers keep it light and make this philosophic journey unforgettably interesting.