De Gruyter plans to digitize the entirety of its backlist from 1749. The final De Gruyter Book Archive will contain almost 40,000 titles, which will be available as ebooks and high-quality hardcover printed on-demand PODs.

Reference Link: https://www.degruyter.com/dg/newsitem/231/de-gruyter-book-archive-260-jahre-verlagsgeschichte-digital