Voluntary page-charge contributions help defray the cost of editorial preparation and composition. These charges assist AJA in maintaining comparatively low subscription rates for AJA members and libraries, thus maximizing the dissemination of research results. Payment is neither an obligation nor a prerequisite for publication. In general, publication charges are regarded as an essential part of research budgets, since publication is the final process in a research project. As such, AJA asks authors to consider making voluntary contributions in partial support of their research and to offset fundamental costs attached to its publication. If you would like to donate, please email to us at aja @ sibs . ac . cn.