A guide to open access monograph publishing for arts, humanities and social science researchers has been released as part of the OAPEN-UK project. The guide aims to help researchers to understand the opportunities and challenges associated with publishing a scholarly monograph in open access. It is freely available online and free print copies are available to order: http://oapen-uk.jiscebooks.org/oaguide/ This guide will be of particular interest to researchers, department heads, research managers, open access staff and librarians.