The Wellcome Trust today announces that it is to extend its open access policy to include all scholarly monographs and book chapters written by its grantholders as part of their Trust-funded research. The extended policy will become effective for holders of grants awarded after 1 October 2013, and for existing grantholders from October 2014. The new policy does not apply to textbooks, 'trade' books, general reference works or works of fiction, or to collections edited but not authored by Trust grantholders. It would not affect, for example, a non-fiction work written by a medical historian aimed at a general audience and published by a commercial publisher.