Volume
A volume is a single book i.e., a group of pages bound
between two covers. Sometimes "volume" is used as a synonym for
"work," but do remember a volume can contain more than one work
(such as an anthology), and a work
can stretch to more than one volume (such as an encyclopedia or
a triple-decker).
From the Guide to Literary Terms by Jack Lynch.
Please send comments to Jack Lynch.
Note: This guide is still in the early stages of development.
Three question marks mean I have to write more on the subject. Bear with me.