Paper and book denominations

24 sheets................=1 quire.

20 quires................= 1 ream.

2 reams................=1 bundle.

5 bundles................=1 bale.

500 sheets is often called a ream in commerce.

Folio in a book or folded periodical.....  = 2 leaves, or 4 pages.

Quarto...............  = 4 leaves, or 8 pages.

Octavo...............  = 8 leaves, or 16 pages.

Duodecimo.............  =12 leaves, or 24 pages.

16mo................  = 16 leaves, or 32 pages.

18mo................  = 18 leaves, or 36 pages.

24mo................  =24 leaves, or 48 pages.

32mo................  =32 leaves, or 64 pages.