NERO is working towards, but does not yet fully meet the AA level of the Web Content Accessibility Guidelines. It is a complex book with images, tables, lists, endnotes, references, cross-references, backlinks and hyperlinks. Some images and tables may appear on pages different from the print version. No images have short descriptions. Linked DOIs are provided, but not uniquely identified. In-text citations are linked, however backlinks only return to the first in-text citation.
