The term is commonly used to identify a single book that is part of a larger collection.
[1] Volumes may be published directly, or they may be created out of multiple bound issues.
For instance, a library that subscribes to a periodical and wishes to preserve it typically takes a set of the issues and has them bound into a volume.
Likewise, a journal may start new volumes for each anniversary after its original inception.
can be a special sub-division of a volume or it can be the highest level division of a journal.