VARIETY
That said. Books within a series should have a consistent style.
When Left aligned, I prefer a Margin, similar to the Indent. I use Margin-Left because subtitles will have the same offset
I use different fonts, different stroke, with a box (similar to feedbooks),, with a partial box (Top and Right), Big first letter,
Why would I want to be boring? There was a reason (cold type) printshops had drawers upon drawers of different type.
Mono-stylistic is so 1980's dot matrix/ Glass Teletype thinking.
BORING
