Writing

And yes, I'm well aware of the on-screen convention of the space between paragraphs. I obviously use that myself. I rarely read on-line, other than things like DU, which is not quite like reading a book.

I'm likewise a voracious reader. I cannot understand or relate well to people who never read.

I do know that it's possible to format on-line so the printed product will look like a very conventional book, but I have no knowledge of how to do that myself.

Anyway, I hope your wife's book is wildly successful.