I continue to see a lot of books in my Kindle e-book purchases that do not support enhanced typesetting, even though they are regular novels with no apparent special formatting. I decided to look into this since it could provide useful information for authors/publishers wondering why certain books do not allow enhanced typesetting.
In order to research this I took from my collection a sample of 15 books that support enhanced typesetting and 20 books that do not. I then did an inventory of HTML tags and CSS properties in these books, based on the KF8/AZW3 version. Finally, I compared the two sets to see if there was anything unusual I could find in the books that do not support enhanced typesetting.
I found two sets of tags that appear in some books that do not support enhanced typesetting, but never appear in the sample of books that
do support it:
- table/tr/td tags
- h3 and higher heading tags
Could these be e-book features not (yet) implemented in KFX?
(Due to the small sample size of this experiment the results could just have come about by chance, so take this with a grain of salt.)