Access online encyclopedias and specialized reference books for your research project or school assignment.
Read long-form overview articles written by leading scholars in dozens of subject areas.
Read encyclopedias, reference books, periodicals, and other sources covering a wide range of scientific fields.
Choose from several encyclopedias for students and families:
- Early World of Learning
- World Book for Kids
- Online World Book for Students
- Online World Book Advanced
- World Book Timelines