'Open Access' is the title of an agenda item for the 31st ICSU General Assembly (Auckland, New Zealand, 31 August - 3 September). In response to a call for input from the International Council for Scientific and Technical Information (ICSTI), the IUCr Representative to ICSTI and CODATA has provided two documents, available from this site: A short summary of IUCr Journals and Open Access, and IUCr input to ICSU on the two related issues of Open access and Evaluation by metrics.