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