Harriet Tubman

What did people use to buy things before money was invented? Where is money made? Find out in this inviting book that informs readers about coins, paper money, the Federal Reserve, exchange rates, and checking accounts. Featuring a timeline of money's history, detailed photos, stimulating facts, clear, informational text, and a glossary that will assist in improving vocabulary, this Spanish-translated nonfiction title will keep readers engaged from cover to cover.

Read Along or Enhanced eBook: Did you know that most animals in the world don't have backbones? Learn more about invertebrates in this engaging, Spanish-translated nonfiction book. Readers will learn all about mollusks, arthropods, arachnids, and crustaceans while being stimulated from cover to cover with its detailed images and charts, intriguing facts, and informative text.

Read this book to find out about eyes and how they differ from animal to animal. This book uses simple, repetitive text to teach children about eyes using basic vocabulary and stunning photographs that show how eyes differ across a diverse selection of animals, including humans. Children learn what eyes are for, where they are found, and what eyes look like.

Martín De León was the only Mexican empresario to found a colony in Texas. This book also details De León’s integral role in the development of the cattle industry, along with other accomplishments that have made him a compelling figure in Texas history.

This award-winning beginner's guide to the natural world of fish from the creators of the About... series was named an "NSTA Recommends" book. Noted educator and author Cathryn Sill uses simple, easy-to-understand language to teach children the basic characteristics of what fish are, how they swim, breathe, and reproduce, and explains the different ways they protect themselves from predators. With beautifully detailed, realistic paintings, noted wildlife illustrator John Sill introduces readers to the diversity of the fish population, from an Arctic char to a porcupine fish. An afterword...

La 'Gramática de la Lengua Española' es el resultado de más de diez años de trabajo del catedrático y académico Emilio Alarcos Llorach. Ha sido redactada buscando el equilibrio entre la claridad y el rigor de la exposición, y concebida con una intención normativa y didáctica, por lo que constituye algo más que un mero tratado teórico de la materia. En ella se exponen los rasgos de la gramática del español en los actos orales y escritos de los usuarios de la lengua en este siglo XX, descritos según un hilo conductor consecuente y con una orientación metodológica funcionalista.