A simple introduction to the work of librarians in a library.

Explains what police officers do, including helping people in trouble, stopping people who break the law, and directing traffic.

Learn about a crossing guard's job and how they keep people safe.

Provides an easy-to-read explanation of what a doctor does.

Explains what responsibility is, describes different ways it can be expressed, and discusses why it should be practiced.

Learn about Martin Luther King, who has a holiday named for him.

Learn about nurses, where they work, and how they help people to stay healthy.

Learn how street cleaners keep our neighborhoods clean.

Photographs and simple text introduce the work of the veterinarian, who takes care of animals that are sick or hurt.

Readers learn about the history, design and uses of the presidential seal.