Book excerpt: Who am I? What is the meaning of life? Is there a God? Heads Up Philosophy, part of an exciting new series for young adults, explains and explores all these big ideas and more. What is philosophy? It's the issues and theories that are most intriguing and relevant to curious teen minds--questions like what are knowledge, identity, human nature, right and wrong, faith, freedom, and justice? Combining lively text with cool, graphic illustrations, this book is designed to provoke, entertain, and stimulate young minds.