This translation is not yet complete. The books with active hyperlinks are the ones that are finished. The OEB is a modern translation created by editing the Twentieth Century New Testament translation, and derived from the Greek Wescott-Hort text. The OEB aims to be a "scholarly defensible mainstream translation", which is intended "not to push any particular theological line". The reading level of the OEB "[corresponds] roughly to the NEB/REB or NRSV", that is, High School reading level. The OEB's initial release was in August 2010, although a preview of the Book of Mark was released in March 2010.