Por qué algunos animales tejen telarañas (Why Animals Live in Webs)

Describes the impact of the Ford Model T automobile and the assembly line that built it on the automotive industry and American society, and recounts the life and career of their inventor, Henry Ford.

Snowstorms takes you inside one of nature's most powerful events! Although each flake starts with tiny ice crystals, a snowstorm can become a blinding blizzard! Find out how to stay safe from these dangerous winter storms. Spanish Edition

La Asociación Española de Sexología Clínica ha escrito los textos de esta colección con el fin de responder a la curiosidad de los niños y enseñarles de una forma natural, adaptando cada cuestión a su edad y explicando las cosas de un modo sencillo, aunque riguroso, acompañado además de graciosas ilustraciones. Este libro responde con seriedad a las falsas creencias sobre el sexo, indaga en los distintos tipos de familias y enseña a enfrentarse a un posible abuso sexual.

November 1940. A circus parade walks through the streets of Warsaw, waving a flag and singing. They are 160 Jewish children, forced by the Nazis to leave their beloved orphanage. It's a sad occasion, but led by Doctor Korczak, their inspirational director, the children are defiantly joyful. Their new home is in the ghetto, a prison for Jews. Two years later they board the train that will carry them away to the death camps. Offered his freedom, Doctor Korczak refuses to abandon the children and proudly joins them on their last journey. This profoundly moving illustrated book is based on the...