In bookmaking, in a left-to-right-reading language such as English, the terms rēctō (folium rēctum) and versō (folium versum) are used to differentiate the right-hand and left-hand pages of an open book.
Text on the rēctō page is typically shifted slightly to the left (toward the spine) and text on the versō page is typically shifted slightly to the right (again, toward the spine). Also, page numbers are often placed in one corner or the other, rather than centered.
But what about when a book is typeset with all pages centered, with the intention of it being published for single-page-at-a-time reading? Is there a word for that?
I was thinking perhaps centrō (folium centrum), but unfortunately I am very much not well-versed in Latin.