Encyclopaedia Britannica
7.4#2 in online encyclopediasFree planFree planAndroidiOSWebExtension
VisitEncyclopaedia Britannica vs World Book Online
World Book Online
6.4#9 in online encyclopediasFrom $250 a yearAndroidiOSWeb
VisitWhat both publish
| Fact | Encyclopaedia Britannica | World Book Online |
|---|---|---|
| Founded | 1768 | 1917 |
| Headquarters | Chicago, Illinois, United States | Chicago, Illinois, United States |
| Support | Customer support is available by phone, Monday through Friday, with listed hours varying by support inquiry. | World Book provides technical tutorials for SSO integrations, subscription administration, home access, system requirements, and usage reports. |
Encyclopaedia Britannica plans
- Free accessFree
- Britannica Education institutional subscriptionPriced on request
- Britannica PremiumPriced on request
- Encyclopaedia Britannica PremiumPriced on request
World Book Online plans
- World Book Online Annual Subscription$250 a year
Pick Encyclopaedia Britannica if…
You want what its maker publishes above — check its page for the details.
Pick World Book Online if…
World Book Online is intended for pre-K through high school learners and can be used in classrooms and libraries. Its range of early-learning activities and student research tools may suit different school-age learning needs.