Racismo: Historia del peligroso mito de la raza

Cuarenta almas que nos hablan desde la muerte en primera persona. Todas narran su vida y su muerte, escribiendo su historia en el gran libro de la biblioteca de Demétere, ciudad donde recalan las almas antes de marchar a su siguiente destino: la brillante ciudad de la luz, Sulmina (paradigma del cielo), o la terrible ciudad de Hécate (el infierno).

What do you do if you find yourself stranded at sea? This useful Spanish-translated nonfiction book gives readers the information they need in order to survive at sea. With essential tips and instructions, helpful diagrams and images, a bibliography, and a list of other useful websites, readers will learn everything they need in order to survive--from the dangers of hypothermia, what to do if there's only saltwater available, and other useful survival skills.

Poems about being alone, love, fear, life, death and adults from a child's point of view. A boy wearing a tiger mask takes young readers on a journey of self-understanding and discovery.

Internet security breaches have been in the news of late. Organizations, governments, businesses, and individual internet users are all at risk. This book introduces readers to the importance of cybersecurity and addresses the current risks from hackers, viruses and other malware, identity thieves, and other online perils. It provides concrete measures that young digital natives can take to protect themselves and their computers, smartphones, and other devices. This volume's lively, cautionary narrative and useful tips will help readers effectively defend their identities and data.