¿Verdad o mentira?

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 aborda las relaciones sexuales y afectivas de la pareja, el proceso de fecundación, así como los métodos anticonceptivos.

Lyndon B. Johnson was born in Texas in the early 1900s. This appealing biography has been translated into Spanish and highlights Johnson's life as he represented Texas in the United States Congress for 24 years and became the 36th President of the United States. Through engaging images, intriguing sidebars and facts, easy to read text, and a supportive glossary and index, readers will learn about interesting topics such as the Higher Education Act, Voting Rights Act, Minority Whip, and the Vietnam War. Readers will be eager to learn more about Johnson's fascinating life as they move from...

Do you know the important skills it takes to survive in the jungle? Learn about them in this useful, Spanish-translated nonfiction title. With helpful diagrams, vital tips and instructions, vivid images, and a glossary of useful terms, this title will have readers feeling aware and prepared!

(back cover) Un ¡rbol geneal3gico es el dibujo de un ¡rbol que muestra a tus antepasados. Ellos son personas de tu familia que nacieron antes que to. Tus antepasados son muy especiales, porque forman parte de tu vida y de tu historia. Dibuja un ¡rbol y p©gale fotos de miembros de tu familia, los mayores en las ramas de arriba, los menores en las de abajo, y to y tus hermanos en la base del tronco. Luego, escribe sus nombres bajo cada foto. ¡Y ya tienes hecho el ¡rbol de tu familia!

Who were the earliest Americans? When, how, and from where did they enter and spread across the continent? And what is their relationship to modern Native Americans? Anthropologists develop theories to answer these questions based on the evidence they discover. Their theories—and the discoveries that prove and disprove them—are highlighted in this fascinating volume, full of awe-inspiring facts and incredible breakthroughs. Readers will feel like anthropologists and archaeologists themselves as they read about bones and artifacts, and what they reveal about the ancient cultures that roamed...