Many research funders and institutions worldwide have introduced policies requiring authors to make their research openly accessible, whether through immediate open access publication, or through archiving a version of their manuscript in a repository. An increasing number of these policies apply to monographs and chapters in edited collections. Follow our open access checklist to help you meet the requirements of your funders and institutions, and identify potential sources of book processing charge (BPC) or chapter processing charge (CPC) funding if you are publishing OA.