The OCG issues and distributes professional publications regularly. The volumes of the OCG book series have been issued since 1976 and since 1999 they have been published under the name So far approximately 300 volumes have been published.
The OCG also publishes a magazine for its members and an informative magazine for ECDL and OCG certificates.

OCG as publisher

Publishing activities of the OCG...

OCG Bookshop

You can order all available books of the OCG book series in our new Webshop...


OCG Journal

Four issues of the official OCG magazine are published each year...



Once a year an informative magazine about all OCG certificates is issued...


OCG Annual Report

The OCG Annual Report is published once a year and distributed to all OCG members.