World Book Online

Since 1917, World Book, Inc., has set the standard for providing accuracy, objectivity, and reliability in research materials for both children and adults. Based in Chicago, Illinois, World Book is an industry leader in the production of award-winning encyclopedias, reference sources, and digital products for the home and schools.

For almost 90 years, World Book has been committed to publishing encyclopedias and other reference products that meet the highest standards of editorial excellence while keeping pace with the technological developments that define the computer age.

World Book, Inc. sets the standard in publishing accurate, current, and reliable reference and learning materials for children and adults. Based in Chicago, World Book is committed to creating educational products that meet the highest standards of editorial excellence in print and online. This commitment has resulted in a wide range of products including the number-one selling The World Book Encyclopedia; the World Book Web, which is the most comprehensive and authoritative online solution to meet the diverse information needs of students, educators, public library patrons, and families; and World Book Classroom, innovative and effective teaching resources to improve learning in the classroom setting. World Book is a Scott Fetzer company, a subsidiary of Berkshire Hathaway, Inc.