¿Qué Son Los Bienes y Servicios? (What Are Goods and Services?)

Born in 1452, Leonardo da Vinci is still, today, considered one of the most talent people to have ever lived. From his world famous paintings and drawings, such as the Mona Lisa and the Vitruvian Man, to his ingenious inventions of the parachute, the helicopter, and the military tank, da Vince was always a step ahead of his time. Discover the origins of a man who refused to be defined by just one vocation. Whether science and engineering or architecture and art, Leonardo da Vinci was the ultimate Renaissance Man.

La presente obra es fruto de la larga amistad de Wanda Póltawska y su esposo con Karol Wojtyla, amistad que se inició cuando el papa era sacerdote en Polonia y se convirtió en su director espiritual y confesor. Diario de una amistad no es una biografía, es un libro-diario que recoge escritos inéditos de Juan Pablo II, apuntes de la autora, sugerencias para la vida espiritual y sobre todo una selección de la correspondencia que mantuvieron Wanda Póltawska y Karol Wojtyla durante cincuenta años; unas cartas que muestran la sensibilidad y humanidad del papa.

Learn how zookeepers at the National Zoo keep the animals healthy and happy. This Spanish book features a hands-on STEAM challenge and uses real-world examples to give insight into how the engineering design process is used to solve problems.

Takes the reader on an imaginary trip through California while offering information about the history and geography of the major cities and towns.