For more than forty years, The Universe Next Door has set the standard for a clear, readable introduction to worldviews. Using his widely influential model of eight basic worldview questions, James Sire examines prominent worldviews that have shaped the Western world: theism, deism, naturalism, Marxism, nihilism, existentialism, Eastern monism, New Age philosophy, postmodernism, and Islam. Intertwined with this analysis, Sire presents an overview of intellectual history giving insight into the current state of Western thought and culture. Critiquing each worldview within its own frame of reference and in comparison to others, Sire encourages listeners to wrestle with life's biggest questions and examine the core beliefs and commitments on which they are building their lives. The sixth edition, updated by Sire's longtime editor Jim Hoover, features a chapter on challenges to a Christian worldview in the twenty-first century. New discussion questions will help listeners reflect more deeply on the ideas in each chapter. In a world of ever-increasing diversity, The Universe Next Door offers a unique resource for understanding the variety of worldviews that claim the allegiance of mind and heart.