Book Size coding - Explains what such things as 8vo mean

[jcoughlin]

4to- A book that is up to 12" tall. See Quarto.
8vo - A book that is up to 9 ¾" tall. See Octavo.
12mo - A book that is up to 7 ¾" tall. See Duodecimo.
16mo - A book that is up to 6 ¾" tall. See Sextodecimo.
24mo - A book that is up to 5 ¾" tall.
32mo - A book that is up to 5" tall.
48mo - A book that is up to 4" tall.
64mo - A book that is up to 3" tall.
Folio - A book that is up to 15" tall.
Elephant Folio - A book that is up to 23" tall.
Atlas Folio - A book that is up to 25" tall.
Double Elephant Folio - A book that is up to 50" tall.