El tren de los monstruos

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...

Habitat for Humanity has built more than 100,000 houses around the world. Volunteers of all ages help Habitat for Humanity. Young readers will be inspired by the work Habitat does. They may even volunteer to help!

An award-winning, educator-approved first book on birds. In this simple volume, educator and author Cathryn Sill uses clear, easy-to-understand language to teach children what birds are, what they do, and how they live. Noted wildlife illustrator John Sill provides beautifully detailed, realistic paintings to showcase the birds' diverse and natural worlds, and an afterword provides more details about each bird and inspires further learning.

Robin Sharma, autor del internacional best seller El monje que vendió su Ferrari, regresa a la parábola con una historia inspiracional acerca del nuevo significado y valor del liderazgo. Robin Sharma ha compartido durante más de quince años su fórmula para el éxito con las empresas líderes de Fortune 500 y personajes destacados en todo el mundo, una receta que le ha convertido en uno de los asesores de liderazgo más solicitados internacionalmente. Ahora, por primera vez, Sharma comparte sus conocimientos excepcionales con todos sus lectores. Siguiendo sus consejos podrás realizarte...