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...

In this biographical book, young readers will learn about the brave life of Harriet Tubman. Readers will discover how Tubman bravely escaped from her life as a slave to cross the Mason-Dixon line into freedom and how she helped hundreds of other slaves into freedom through the Underground Railroad with the help of abolitionists. The vivid images, stunning facts, and supportive text work in conjunction with the helpful glossary, index, and timeline of Tubman's life to give readers an engaging experience as they move from cover to cover. This book has been translated into Spanish.

Pido disculpas a la lectoría, si es que acaso la tengo, por el atrevimiento del título, ya que debe ser ella, y no yo, quien califique la buena o mala calidad de mis poemas. He sido juez y parte en esta selección. Cada vez que escribo poesía, o mejor dicho, sirvo de vehículo para que ésta cabalgue cual brioso potro por los prados de los cuatro puntos cardinales, mi memoria, añeja ya de tantos años encima, se siente aliviada de su peso, pues se ha librado de un huésped que reclamaba su libertad. No creo que como poeta haya creado nada, sólo he liberado poemas en prosa y verso que...

Deserts are the driest places on Earth, but they’re full of life! Cacti, kangaroo rats, shrubs, foxes, and more have found ways to adapt to the extreme temperatures and dry conditions of deserts around the world. Readers learn about many of these adaptations as well as the major features of the desert biome. Simple maps highlight some of the biggest deserts, helping readers learn map skills. Full-color photographs reinforce accessible information about the desert ecosystem, including a concluding message of conservation.

National Book Award Winner Coretta Scott King Award Winner Newbery Honor Book Robert F. Sibert Informational Honor Book ¿Qué significa crecer en dos lugares y no pertenecer completamente a ninguno? Jacqueline Woodson creció entre Carolina del Sur y Nueva York y siempre se sintió a medias en ambos. Estos poemas, conmovedores y poderosos, lo reflejan; así como reflejan la experiencia de ser una niña afroamericana en las décadas de 1960 y 1970, de una infancia vivida entre los residuos de las leyes de Jim Crow, de su aprendizaje constante sobre el movimiento de derechos civiles. Cada...