Click
ePUB, and then click Book Metadata.
The Book Metadata dialog box opens.
Verify that the metadata that Bloom supplied is correct.
Type metadata in each text box field that Bloom does not supply.
Click the Subjects down arrow (
).
Do these steps in the drop-down subject list that appears:
Scroll and expand (
) subjects to navigate to the desired one.
Select (
) one or more subjects.
Click anywhere outside of the list to close the drop-down list.
To remove a subject you had selected, click the small gray x (
) at the end of the subject or display the list again and clear (
) its check box.
Click the Accessibility level down arrow (
) and then click a level.
Click one or more Hazards check box, to inform potential readers:
the hazard exists;
this hazard does not exist;
unknown or unstated.
Click one or more Accessibility features check box, to inform potential readers:
this book has this feature;
this book does not have this feature.
Click OK.
http://www.idpf.org/epub/a11y/accessibility.html#sec-acc-pub-wcag
http://www.idpf.org/epub/a11y/techniques/techniques.html#meta-003