Cómo ayudar a un amigo que está deprimido (Helping a Friend Who Is Depressed)

Read Along or Enhanced eBook: Learn all about the amazing things your brain does and how to keep it healthy and strong! Readers will discover the anatomy of the brain including neurons, the cerebellum, and the nervous system. Using vibrant images and informational text in conjunction with supportive diagrams, this Spanish-translated nonfiction title encourages readers to learn all about (and use) their brains.

Besides oil, Texas has long been associated with cattle and agriculture. Learning about these industries will allow readers understand how valuable their development is to the growth of the state of Texas, as well as America's economy.

A human hand is found in the zoo's elephant enclosure. The rest of the teacher and ardent environmentalist turns up on the lawn. Although admired by his students, nearly everyone else seems to have a reason to want him dead.

Introducción, traducción y notas de A. Melero Bellido. Revisada por A. A. González Terriza y R. Herrera Montero.