Una Luna

En este libro para niños, el ratoncito en el cuento está buscando su osito. Las caricaturas de ositos incorporan texturas diversas para la exploración en cada hoja de un tacto diferente.

Las computadoras y el Internet cambiaron para siempre la forma en que comunicamos mensajes y otro tipo de información. También crearon nuevos desafíos para poder mantener esas comunicaciones privadas. Ahí es donde entra la criptología digital, el estudio de la comunicación digital secreta. Aprende sobre cómo trabajan los criptólogos profesionales para burlar a los piratas informáticos y ciberterroristas que intentan acceder a información privada. ¡Luego prueba tus habilidades con una actividad práctica de criptología digital! Computers and the internet forever changed how we...

Many desert animals around the world are in danger of becoming extinct. In this enlightening, Spanish-translated nonfiction title, readers will learn a few of the causes of extinction in the desert and what problems extinction causes for animals, wildlife, and humans alike. Through vibrant photos of beautiful animals and stunning facts in conjunction with informational text and useful charts and diagrams, readers will learn and understand concepts such as habit loss and learn ways that animal activists help to protect animals and their environments, as well as helpful tips to get involved in...

Written specifically for teenage parents who must blend their own needs as adolescents with the tremendous needs of their children, this book advocates gentle teaching rather than the harsh punishment too often utilized by many parents. Teen parents and former teen parents share their viewpoints on such issues as spanking, disciplining a child while living with one’s own parents, toilet training, and other topics of concern during a child’s first three years. Escrito especificamente para padres jóvenes que deben balancear sus necesidades como adolecentes con las de sus hijos, este libro...