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.

l volumen incluye íntegros los poemas Canto heroico y fúnebre por el subteniente caído en Albania (1945), Sol soliarca y Monograma (ambos de 1971), además de Dignum est (1960), el gran poema del que Theodorakis realizó un extraordinario Oratorio. Completa

Mediante la confluencia de poesía, pensamiento y narrativa, el texto de Rafael Argullol representa una aventura a través de la memoria a la búsqueda del propio mito, de las brechas en el tiempo por las que se libera la profundidad de la vida.

Inspirada en la reflexión serena sobre la realidad íntima y sobre la existencia, la obra de Francisco Brines, reunida aquí en edición definitiva, trasluce coherencia y constancia, y, a la vez, sutiles transformaciones. Así, la lucidez precoz de Las brasas (1960, Premio Adonais 1959) da paso a los poemas histórico-narrativos que conforman Materia narrativa inexacta (1965) y al sinuoso y reflexivo Palabras a la oscuridad (1966, Premio de la Crítica). Aún no (1971) abre caminos nuevos, como la sátira y un desgarrado existencialismo que preconiza la visión desengañada y metafísica de...

For ages, the idea of machines that think and act on their own has gripped scientists, thinkers, and the general public. This book explores the history of artificial intelligence (A.I.), and how science fiction is quickly becoming science fact. It examines the technologies involved in A.I. and its inevitable effects on work, life, health, and many other aspects of human society. Rooted in history and science, this book provides an inside look at a topic that captivates engineers, scientists, and dreamers, but also raises important ethical issues and challenges how we see ourselves and our...