In this book two philosophers, each committed to unambiguous versions of belief and disbelief, debate the central issues of atheism and theism. Considers one of the oldest and most widely disputed philosophical questions: is there a God? Presents the atheism/theism issue in the form of philosophical debate between two highly regarded scholars, widely praised for the clarity and verve of their work. This second edition contains new essays by each philosopher, responding to criticisms and building on their previous work.