A Damn Fine Hand is available as an eBook, in three formats.
The “Mobi” format works on Kindle and Kindle-compatible readers and apps.
Apple uses the ePub format in their Books app. ePub files are also readable by many other eBook readers and apps.
PDF is an industry-standard document format that is readable by many apps and almost all devices. The advantage of PDF is that it is easy to use and widely compatible. But it presents the book in a fixed format and so layout options, fonts, font sizes and other options cannot be changed for accessibility or personal preference.
Mobi and ePub both have excellent support for accessibility and are the standard formats for Kindle (.mobi) and Apple Books (.epub).
At this time, A Damn Fine Hand is only available as an eBook.