Language tagging provided
Short alternative textual descriptions
Print-equivalent page numbering
EPUB Accessibility Specification 1.0 AA
http://www.idpf.org/epub/a11y/accessibility-20170105.html#wcag-aa
Accessibility summary
This Publication meets the requirements of the EPUB Accessibility specification with conformance to WCAG 2.0 Level AA. This book contains various accessibility features such as alternative text for images, table of contents, page list, landmark, reading order, and structural navigation.
Single logical reading order
Table of contents navigation