Conoce a Cristbal Coln

In AD 79, the residents of the booming Roman city of Pompeii were shocked when a nearby mountain exploded, releasing superhot ash, rock, and gas on the surrounding areas. What happens next is the extraordinary account of a volcano in action. Though the people who didn't flee Pompeii were doomed, the volcano preserved their remains, allowing us to better understand a fascinating time in the Roman Empire. Astonishing photographs of Pompeii, primary source records of the occurrence, and riveting text are just some highlights of this high-interest volume.

Simple text and photographs introduce the purpose of money, how old coins and paper money are disposed of, and how new money is made.

Love is in the App es una historia real, la de Angie, una conocida modelo española de los noventa, que nos relata en primera persona sus aventuras y desventuras en las redes de contactos. La protagonista, junto a su álter ego, un descarado diablillo gay, nos introduce de manera fresca y espontánea en el universo de las cibercitas, en el que no faltan los encuentros excitantes, las nuevas experiencias, el drama, la mentira, el humor y, por supuesto, el sexo. Una historia con la que más de uno podrá sentirse identificado, y con la que otros tendrán la oportunidad de conocer, de la mano de ...

Young readers may have heard about the benefits of using and making the most of their resources, but how does that factor into an economic discussion? This thorough discussion defines resources and describes the different types of resources and why some divide them into three categories and others choose four. The book also addresses the concept of scarcity, showing readers how, because all resources have their limits, it is important to use them responsibly and efficiently in a healthy economy.