Un día de nuestras vidas (A Day in Our Lives) 6-Pack

Christopher Columbus most likely wasn’t the person to discover the Americas. He wasn’t even the first European to do so! Despite that, his three trips to the Western Hemisphere led to many more European explorers heading in that direction. In this volume, readers familiar with Columbus’s travels on the Nina, Pinta, and Santa Maria can learn who Columbus was beyond his travels. Supported by full-color and historic images, interesting main content turns what readers think they know about the life of Columbus on its head while expounding on an important period in the history of the world.

National Historic Landmarks are historic places that have exceptional value illustrating our heritage. The Alamo might be one of the best-known monuments, but reader will learn that there over 45 sites in Texas that are marked as historical monuments.

Siempre está encima de nosotros y por eso parece que lo sabemos todo sobre él, pero el cielo encierra un tesoro escondido: el secreto del tiempo y el principio de todo. Mirar hacia arriba en busca de estrellas y planetas se convierte así en un viaje increíble en busca de los límites del Universo hasta llegar al Big Bang, la explosión que dio origen a todo. Su destello de luz ha llegado hasta nosotros como una voz del pasado. Escuchándola, descubriremos que estamos hechos del mismo material del que están hechas las estrellas, que nacen, brillan y mueren, como nosotros. En este...

This book is a comprehensive, practical presentation of the principles of behavior modification and guidelines for their application. It teaches forms of behavior modification ranging from helping children learn necessary life skills to training pets, to solving personal behavior problems.