Crisis energética: El futuro de los combustibles fósiles (Energy Crisis: The Future of Fossil Fuels)

From art and architecture to politics, philosophy, and mathematics, "western civilization" owes a great deal to the achievements of ancient Greece, but what do we really know about this long-gone civilization? How did geography influence the politics of the Greek city-states? What's the difference between an agora and an acropolis? This book takes readers several thousand years into the past, when independent city-states ruled the Mediterranean Sea, to find the answers. Full-color photographs and maps, accompanied by accessible text, introduce readers to the many contributions the ancient...

Bestseller del New York Times y del USAToday Una exploración oportuna y crucial del racismo y el antirracismo en Estados Unidos Este NO es un libro de historia. Este es un libro sobre el aquí y el ahora. Un libro que nos ayudará a comprender mejor por qué estamos donde estamos. Un libro sobre la raza. El concepto de raza siempre se ha utilizado para ganar y mantener el poder, para crear dinámicas que separan y silencian. Esta notable adaptación del libro Stamped from the Beginning, del Dr. Ibram X. Kendi, ganador del National Book Award, revela la historia de las ideas racistas en...

Describes the U.S. Army Rangers, including their missions, vehicles, weapons, equipment, and duties. Written in English and Spanish.

A land of extremes, from active volcanic peaks to dense rain forests, Guatemala has sustained great civilizations and attracted foreign conquerors. While shadows of its vicious, decades-long civil war still linger, Guatemala's people work toward peace and stability in the face of corruption and impunity. Illuminating photographs, insightful facts, and informative sidebars help the reader discover what it's like to live in today's Guatemala, its ancient beginnings, dramatic landscape, rich culture, resilient people, and more.

Short poems suggest solutions for common everyday situations, from tantrums and boredom to dirty fingernails and untied shoelaces.