Reference Books: Definition and Examples

Books that are in the reference genre contain factual information about a specific subject. Some examples of reference books are dictionaries, encyclopedias, and atlases.

What is a Reference Book?

Reference books are non-fiction books that contain factual information about a subject or subjects. People often use reference books for research and to learn more about a certain topic, and they are usually not intended to be read from beginning to end. Some reference books, such as encyclopedias, dictionaries, and thesauruses, contain a variety of information, while others, such as cookbooks, travel guides, and how-to books, focus on a particular topic. Before the internet, reference books in libraries were frequently used for school research projects, or for people who simply wanted to learn more about something new. Books in the reference section of the library were actually not allowed to leave the library, so people would have to do their research on the spot; nowadays, however, most research is conducted online.

Reference books that are written on a particular topic contain a bibliography, which is a list of all the sources that were used in the research process. In general, bibliographies should include authors’ names, titles of any works referenced, names of publishing companies, dates, and page numbers if applicable.

Some popular subject matters that are covered in many reference books are: arts and literature, politics, history, business and economics, religion, health and medicine, sciences, social sciences, travel, and law.

Types of Reference Books

  • Encyclopedia Britannica
  • The Elements of Style
  • The American Heritage Dictionary
  • Roget’s International Thesaurus
  • Guinness Book of World Records
  • CRC Handbook of Chemistry and Physics
  • National Geographic Atlas of the World
  • The Farmer's Almanac


Want to learn more? Check out our educational article on Literary Genres!


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Frequently Asked Questions about Reference Books: Definition and Examples

What is a picture encyclopedia?

A picture encyclopedia is a reference book or online resource that uses images alongside text to explain facts and topics, making learning easier and more engaging for students and teachers.

How can teachers use a picture encyclopedia in the classroom?

Teachers can use a picture encyclopedia to introduce new topics, support visual learners, create interactive lessons, and encourage students to explore subjects independently with the help of images.

Why are picture encyclopedias helpful for students?

Picture encyclopedias help students by providing visual context, simplifying complex ideas, and making information more memorable and accessible for all ages and learning styles.

What topics are usually covered in a picture encyclopedia?

Most picture encyclopedias cover a wide range of subjects such as science, history, geography, animals, and famous people, often organized for quick reference and easy understanding.

What is the difference between a picture encyclopedia and a regular encyclopedia?

A picture encyclopedia focuses on using images to explain facts, while a regular encyclopedia relies mostly on text. This makes picture encyclopedias especially useful for younger learners and visual thinkers.