Mara, Wil

This book explains safety rules for having fun at a children's playground.

This book explains safety rules for walking near a busy street.

Helps children learn how to stay safe while riding in a car, explaining basic safety rules and how to be a smart rider.

Describes the skills necessary to pursue a career as a wind turbine services technician, and examines the type of work they do.

A history of race relations in the U.S. includes coverage of slavery, abolition and segregation as well as the events of the Civil Rights movement, discussing subjects ranging from protests and speeches to legislation and the famous people around the world who helped promote equal rights.

Describes the events of the Tiananmen Square massacre of June 1989, and covers economic reform in China, the beginnings of a pro-democracy movement, and how the Chinese government dealt with the aftermath of the massacre.

Discusses ways nature has inspired technological innovations and focuses on how locusts have helped scientists develop anti-collision systems for automobiles.

A simple introduction to antonyms taught through the story of a boy who brings a frog home from a pond.

Simple text and illustrations provide a biography of Martin Luther King, Jr.

Presents a history of environmental protection in the United States, discussing how writers influenced Americans' feeling about the natural world, why environmentalism became more popular during the twentieth-century, and how the government is working to protect the environment today.