This intriguing book looks at the remarkable abilities of plants and animals, which need to be studied to make our environment more sustainable. People have already used birds as models for… More →

The concept of supply and demand is made easy in this fascinating new title! Look inside What is Supply and Demand? and learn the ins and outs of this fundamental concept of economics. More →

Few books explain the scientific classification of animals as well as What is the Animal Kingdom? All creatures, including insects, mammals, and fish, are classified and described from simple More →

The executive branch of the United States government is responsible for putting laws into action. This book carefully explains the workings of the executive branch, from its most visible… More →

The judicial branch of government consists of the nation's courts. This title explores the role of the United States Supreme Court and its role in interpreting the U.S. Constitution, as well… More →

The legislative branch of the United States government represents the people and makes the laws which they live by. This book introduces readers to the House of Representatives and Senate,… More →

What is the Rock Cycle describes the natural transformation of one type of rock into others. Beginning with igneous rocks made in volcanic eruptions, rock is weathered and eroded gradually to More →

Charles Darwin is known as the father of evolutionary biology. This engaging title examines how Darwin developed his controversial theory of evolution, including his research methods and the… More →

In 1912, German meteorologist Alfred Wegener published his groundbreaking theory of continental displacement. His theory proposed that the continents were once a single land mass but had… More →

This book carefully explains how countries around the world engage in trade. Whether it is a detailed description of how countries negotiate trade agreements, how countries use tariffs to… More →