The International Standard Book Number (ISBN) is a unique International Publisher’s Identifier number,
which is meant for monograph publications. ISBN is the thirteen-digit number, which replaces the
handling of long bibliographic descriptive records. ISBN is known throughout the world as a short and
clear machine-readable identification number, which marks any book unmistakably. ISBN is a machine
readable in the form of 13-digit i.e. Book land EAN Bar Code.