¿Caimán o cocodrilo? (Alligator or Crocodile?)

What’s the difference between a seal and a sea lion? These “second cousins” of the sea look similar, but there are many ways to tell these creatures apart. From ear shape to the noises they make to communicate, seals and sea lions are amazing creatures with both shared features and many truly unique attributes. They both share an ocean habitat, but when readers take a closer look, it’s easy to discover how they each fight off predators, mate, and raise their young in different ways. Captivating full-color photographs help to bring these marvelous mammals to vivid life.

Climb aboard for a journey into the world of trains! In this fascinating, Spanish-translated nonfiction title, readers learn about the history of trains, the different uses for them, and the different types and parts including freight cars, box cars, passenger cars, and the caboose. With detailed photos, informative text, and intriguing facts, this book will have readers delighted from cover to cover!

Forces and motion are key concepts in the elementary science curriculum. This Spanish edition of How Simple Machines Work uses simple text and full-color photographs to help ELL students understand the principles behind simple machines. Each volume includes three diagrams to enhance comprehension. The text uses authentic language and is designed to build reading skills as well as knowledge of basic science concepts.

Leonard B. Meyer explica en este libro como funcionan los mecanismos de la mente para percibir y entender la musica. Sus paginas constituyen un lucido estudio de la psicologia de la percepcion musical que ha sido profusamente citado por musicologos, compositores y filosofos desde su primera edicion de 1956. Entre sus admiradores figuran Umberto Eco y Enrico Fubini, cuyos comentarios aparecen recogidos en el amplio prologo escrito por el prestigioso compositor Jose Luis Turina, autor tambien de la traduccion. &la" El objeto principal de este ensayo --senala Turina-- es doble: de un lado,...

A simple biography of the man who worked to win fairer treatment of the migrant farm workers in California in the 1960s and to establish the United Farm Workers union.