¿Caimán o cocodrilo? (Alligator or Crocodile?)

What’s the difference between a seal and a sea lion? These “second cousins” of the sea look similar, but there are many ways to tell these creatures apart. From ear shape to the noises they make to communicate, seals and sea lions are amazing creatures with both shared features and many truly unique attributes. They both share an ocean habitat, but when readers take a closer look, it’s easy to discover how they each fight off predators, mate, and raise their young in different ways. Captivating full-color photographs help to bring these marvelous mammals to vivid life.

Learning about a career as a molecular biologist is the perfect introduction to the practical applications of STEM. This career-focused book aims a microscope at molecular biology, helping readers understand DNA, genes, and the systems within a cell. Readers will also learn about advances in the field and how to work towards a job as a molecular biologist. Accessible text is paired with vivid visuals to keep readers’ interest as they learn more about this STEM topic. A graphic organizer and fun fact boxes present additional information to ensure a dynamic learning experience.

Each year, Martin Luther King Jr. Day serves as a reminder of the life and work of one of America's greatest civil rights activists. In this informative book, readers will learn about the importance of the civil rights movement and why we celebrate Martin Luther King Jr. Day. Full-color photographs accompany the text. This essential book features accessible language that is ideal for children in the early stages of learning to read.

This title will introduce little readers to the 16th president of the United States, Abraham Lincoln. Readers will gather basic, biographical information about Lincoln through easy-to-read, simple text. They?ll also love the historical photographs, the More Facts section, and bolded glossary terms. Translated by native Spanish speakers. Aligned to Common Core Standards and correlated to state standards.

Humphrey Carpenter, autor entre otros libros de una biografia del poeta W.H. Auden, narra en esta obra la larga carrera de J.R.R. Tolkien desde las vicisitudes de una infancia dificil a los trabajos y obligaciones de la vida academica, como profesor en la Universidad de Oxford. Carpenter ha escrito esta primera biografia del creador de la Tierra Media, consultando documentos ineditos, y entrevistando a parientes y amigos.