¿Qué hacen los policías? (What Do Police Officers Do?)

The Industrial Revolution brought important changes to America. People began migrating to cities for work, and immigrants began to arrive in American in larger numbers than ever before as they looked for new employment opportunities. Readers explore the impact of the Industrial Revolution on U.S. migration and immigration patterns. As readers learn about essential social studies curriculum topics, engaging historical images and detailed primary sources hold their interest. This transformative period in American history comes alive for readers with each turn of the page.

Even the smallest tide pools are actually entire ecosystems! The creatures that call a tide pool home are connected through food chains that represent the passing of energy from one living thing to another. Readers discover how these unique food chains all come together as they view a helpful tide pool food web. Fun fact boxes accompany informative text about life in a tide pool. Detailed photographs of tide pool ecosystems introduce readers to a variety of cool creatures.

En palabras del propio Octavio Paz "este libro se fue haciendo poco a poco a través de los años, sin un plan fijo". La edición que hoy se publica se fue gestando durante más de cincuenta años y el título, "Libertad bajo palabra", nombra varios textos publicados a lo largo de la vida del poeta. Un libro que es también una vida, tal como su autor la ha reescrito sucesivamente. La colaboración del propio Octavio Paz, aclarando problemas del texto y señalando las fuentes de algunas alusiones, ha sido definitiva para el establecimiento de esta edición. -- From publisher's website.

A retelling, in graphic novel form, of the myth of Thor and his brother Loki, who visit a land of giants in order to resolve their argument about brains vs. brawn.

Describes the ancient giant kangaroo of Australia's distant past that was five times the size of today's largest kangaroos. Discusses how the animal lived and how it became extinct.