¿Por qué Somos Niños y Niñas?

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.

Essays by well-known climbers accompany a range of superb color landscape photographs that echo the great traditions of the Ansel Adams and the Sierra Club large format books of the 1970s.

This book introduces you to hippopotamuses, including their size, diet and everyday behavior, which highlights differences between those in the wild and those living in a zoo habitat.

El crucero es uno de los barcos más grandes del mundo. El barco crucero más grande puede llevar unas 8.700 personas a bordo. Aprende más sobre estas máquinas poderosas en Los cruceros, uno de los libros audiovisuales de AV2. Cruise ships are some of the largest boats in the world. The biggest cruise ship can carry about 8,700 people. Learn more about these mighty machines in Cruise Ships, an AV2 media enhanced book.

Over the years, people have looked for ways to improve our imperfect sight. This has led us to the world of optics, which is the study of light and how it travels. What are some of these innovations that have changed how we see the world, and how do they work? Find the answers to these questions with this Smithsonian Informational Text! Created in collaboration with the Smithsonian Institution, this text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step...