Sistemas de telefonía

Colorful photographs and English and Spanish text teach children some of the many things different animals can do, from fly and swim to eat and do tricks. On board pages.

This illustrated book teaches children everything they need to know about taking care of kittens from picking one out to what to do when they get sick.

Bike riding is a lot of fun, but it can also be dangerous. Read about how people have made cycling safe over the years. Learn how bicycles have changed over time and how bike parts, equipment, and trails make cycling safer. Created in collaboration with the Smithsonian Institution, this Spanish book will ignite a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from Smithsonian employees...

Stefan Zweig tuvo durante toda su vida la necesidad de intercambiar correspondencia, de establecer y mantener contactos. Mediaba la veintena cuando empezó a enviar sus primeros libros, junto con unas líneas de cortesía, a personalidades ya célebres por aquel entonces. Muchas de las respuestas dieron pie a una relación personal cuyos testimonios se han conservado. Con el presente volumen, los compiladores han querido transmitir una impresión lo más concreta posible tanto del peculiar talento de Stefan Zweig para dirigirse a sus corresponsales como de sus manifestaciones personales. Para ...