I wrote a book on how to publish your ebook. The people who read it seem to love it but I haven't marketed it real well. In any case, you might find it interesting if you want to publish your own book or if you wanted to publish your father-in-laws unfinished books.

There's even a bit of information in there about using your computers text-to-speech tool for editing. You have it read the book back to you in order to catch mistakes.

https://smile.amazon.com/dp/B00A4112ZM