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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.

Many people know that Benjamin Franklin discovered electricity through lightning, but he was also a great inventor and helped write the Declaration of Independence! Young readers will learn about Franklin's life in this appealing biography that has been translated into Spanish and features plenty of vibrant images, supportive text, "Fun Fact" boxes, and an accommodating timeline, glossary, and index.

Think you'd like to be a fire fighter? Learn about the special equipment fire fighters use, their role in community safety, and their lives at the station. This book features a comprehensive timeline of the history of firefighting from its origins in ancient Rome through firefighting practices of today plus vocabulary related to fire fighters and fire safety.

A STEM-focused addition to the #1 New York Times bestselling She Persisted series! Now available in Spanish! A lo largo de la historia, a las mujeres les han dicho que la ciencia no es para ellas porque no son suficientemente inteligentes, o porque sus cerebros simplemente no son capaces de ese tipo de estudio. En este libro, Chelsea Clinton nos presenta a varias mujeres científicas que no prestaron atención a los que les dijeron que no y optaron por utilizar su ingenio, sus habilidades y su persistencia para descubrir, inventar, crear y explicar. Ella persistió en la ciencia es un libro...