This traditional book format produces a volume with 24 pages per folded signature. It is created by folding a standard sheet of printing paper to yield leaves that are roughly five by seven inches, though exact dimensions depend on the original parent sheet size. Binders and publishers use this size for small, portable volumes like pocket guides or poetry collections.
Heard on the job
We're setting the new hymnal as a 12mo so it fits easily in the standard pew racks.
Insider tip
The suffix comes from the Latin term duodecimo, and insiders usually pronounce it aloud as twelve-mo.
Also heard as
- twelvemo
- duodecimo