The Encyclopaedia Britannica, which has been in continuous print since it was first published in Edinburgh, Scotland in 1768, said on Wednesday it will end publication of its printed editions and continue with digital versions available online.
The flagship, 32-volume printed edition, available every two years, was sold for $1400. An online subscription costs around $70 per year and the company recently launched a set of apps ranging between $1.99 and $4.99 per month.
The company said it will keep selling print editions until the current stock of around 4,000 sets ran out.
It is the latest move Encyclopaedia Britannica has made to expand its Internet reference services and move farther into educational products. It first flirted with digital publishing in the 1970s, published a version for computers in 1981 for LexisNexis subscribers and first posted to the Internet in 1994.