O’Reilly Media and Microsoft have entered into a joint agreement under which O’Reilly will take over distribution of Microsoft titles as well as co-publish a certain number of titles with Microsoft. O’Reilly will assume distribution in North America beginning November 30 and will gradually take over international distribution as well. As part of the agreement, O’Reilly will also release e-book editions of Microsoft’s backlist and frontlist titles in a phased rollout. For Microsoft’s frontlist titles, O’Reilly will serve as copublisher for about 40 books set for release in 2010 with Microsoft producing another 40 titles on its own.