A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths and spacings of parallel lines. … 2D barcodes can be read using purpose-built 2D optical scanners, which exist in a few different forms. The ISBN (International Standard Book Number) system is utilized to automate ordering and inventory systems for book publishers, distributors, and retailers. It is also utilized for the monitoring of sales data in the publishing industry. This tutorial will guide you step-by-step through the process of creating an ISBN barcode for a book. The ISBN code created in this tutorial is also identical to the EAN “Bookland” barcode.