Harriet Tubman

What did people use to buy things before money was invented? Where is money made? Find out in this inviting book that informs readers about coins, paper money, the Federal Reserve, exchange rates, and checking accounts. Featuring a timeline of money's history, detailed photos, stimulating facts, clear, informational text, and a glossary that will assist in improving vocabulary, this Spanish-translated nonfiction title will keep readers engaged from cover to cover.

Read Along or Enhanced eBook: Did you know that most animals in the world don't have backbones? Learn more about invertebrates in this engaging, Spanish-translated nonfiction book. Readers will learn all about mollusks, arthropods, arachnids, and crustaceans while being stimulated from cover to cover with its detailed images and charts, intriguing facts, and informative text.

Young readers will discover amazing facts about birds' nest-building habits and other information with this new guide featuring Internet links to each of the book's topics.

¿Te gustan las fiestas? Aprende todo acerca del cómo y el por qué la gente celebra diferentes fiestas.

Today’s computers come in all shapes and sizes, but not many people actually know how they’re made. The journey from circuits and wires to a ready-to-use computer is a fascinating exploration of science and engineering. Readers get a look inside their laptops, desktops, and even their tablets as they’re shown step-by-step how these electronic marvels are assembled. Readers will love knowing what goes on inside their own machines, and color photographs and simple instructions will show them how they can build their own computer!

HernanCortes parte rumbo al Yucatan con la mision de auxiliar a la expedicion de Juan Grijalva que enviara el gobernadorde Cuba, Diego Velazquez, y de la cual no se habia vuelto a tener noticia. Noobstante, poco antes de la partida, el gobernador decide desposeerle del mando, pero Cortes consigue hacerse a lamar, y luego de vicisitudes sin cuento, se adentra en ignotos territorios dominados por los indios mexicas, cuyo emperador, Moctezuma, rige susvastos dominios desde la ciudad de Tenochtitlan.En un principio, Moctezuma cree saber queHernan Cortes es la encarnacion del diosQuetzalcoatl, "La ...