"The young readers' edition of the bestselling adult book of the same name"-- In 2004, four undocumented Mexican teenagers arrived at the national underwater robotics championship at the University of California, Santa Barbara. No one had ever told Oscar, Cristian, Luis, or Lorenzo that they would amount to much -- until two inspiring high school science teachers convinced the boys to enter the competition. Up against some of the best collegiate...

The bloody 1846-1848 war between the United States and Mexico filled out the shape of the continental United States, forcing Mexico to recognize its loss of Texas and give up the rest of what became the Southwestern United States. Generally people argue that the United States won this war because unlike Mexico it was already a unified nation that commanded the loyalty of its citizens. Focusing on the vivid experiences of ordinary soldiers and civilians,...