This chapter provides an introduction to the book. The first section analyzes how the title, Gandhi After 9/11: Creative Nonviolence and Sustainability, reveals the purpose and structure of the book and examines whether Gandhi is irrelevant today. It talks about the prominence of those that Gandhi classifies as “modern Indians,” who identify with the worldview and values of Western “Modern Civilization”. The chapter outlines the author’s own approach to Gandhi as a major inspiration who provided him with many, but not all, of the answers when addressing personal, existential, psychological, economic, political, environmental, and other contemporary issues. This is followed by a delineation of seven major topics revealing Gandhi’s extreme contemporary relevance: morality, nonviolence, truth, egalitarianism, democracy, the need for transformative action, and the need for a radical paradigm shift.