¿Quiénes gobiernan nuestro país? (Who Leads Our Country?)

This book is a comprehensive, practical presentation of the principles of behavior modification and guidelines for their application. It teaches forms of behavior modification ranging from helping children learn necessary life skills to training pets, to solving personal behavior problems.

In this stimulating, Spanish-translated nonfiction book, readers will discover the various types of friction--including rolling friction, sliding friction, fluid friction, and static friction--and the huge impact it has on nature, machines, and our lives. In addition, readers are encouraged to perform basic experiments to assist in the understanding of friction, kinetic energy, and water resistance. With real-life examples, colorful images, accommodating graphs and charts, and informational text, this title will inspire and engage children.

Meaning "River of the Colorful Birds," Uruguay is a small country in South America that is covered by crisscrossing rivers and lush hills. Home to approximately 3.5 million people, the country is often regarded as the most stable and prosperous country in Central and South America. Uruguay produces 95 percent of its electricity from renewable energy and is known as one of the most socially progressive nations in the world. Allow your readers to learn more about Uruguay's unique culture through this informative book, which features engaging sidebars and vibrant photographs.

En una fría mañana de invierno, aparece el cadáver de un hombre colgando de una de las puertas de la muralla de Visby, en la isla de Gotland. Se trata de Egon Wallin, un reputado galerista. Descartada la hipótesis del suicidio, el comisario Anders Knutas debe, una vez más, dejar de lado sus problemas personales para centrarse en este enigmático crimen. Anders Knutas no tarda en descubrir que la esposa del fallecido tenía un amante y que la pareja no atravesaba su mejor momento. Es ella quien pone al policía sobre una valiosa pista al descubrir en su desván diversos cuadros robados de ...