Featured Solutions

Label Printing ➝

Modernized label printing tools to help your operations keep up with ever changing demands and regulations – all in one powerful software package.

Asset Tracking ➝

Asset tracking software for monitoring equipment and assets. Optimize usage, locate tools faster, and improve efficiency with our RFID applications.


MarkMagic →

Relied on by thousands of customers worldwide, MarkMagic solves barcoding, labeling, forms, design, and printing challenges in one powerful software package.

Edgefinity IoT →

A powerful software application that combines RFID technology with real-time tracking capabilities, and helps users track assets, locate inventory, and monitor employees.

EdgeMicro →

A simple RFID starter solution that solves common issues in logistical and inventory management. Deploy RFID into your supply chain without big investments or customizations.


[2024 RFID Integration Guide]

Have you been handed an RFID tag mandate from one of your retail partners? This ebook is a complete guide that will help manufacturers, and distributors reap great benefits from deploying RFID into your operations.


CYBRA specializes in RFID technology, real time tracking systems, and enterprise barcode label software solutions.

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What is ISBN?

The International Standard Book Number (ISBN) is a numeric commercial book identifier.

The ISBN is a number that uniquely identifies content and is composed of five parts. The prefix element identifies the country, language area, and publisher of the book. The registrant element is the name of the publisher and can be up to seven digits long. The registrant element is only used in a single language and can be a combination of one and two digits. If the book is published by a single company, the ISBN is assigned to the company that published it.

The publication element of an ISBN is a 10 or 13-digit number that identifies the publication’s specific format and edition. The number can be up to six digits long. There is also a check digit that mathematically verifies the rest of the number. The digit ‘X’ is the check ‘X’ and is in upper case. The ISBN’s check ‘X’ is calculated using a modulus 11 system, but in some cases a Roman numeral is used instead of a ten.

The check digit is derived from the previous parts of the ISBN. The first number is multiplied by ten, each successive number by one less. The final number is multiplied by two. The products of these multiplications are added together, then the sum is subtracted from 11, and the result is the check digit number. This process is repeated for all five sections of the ISBN. The first section contains the country and region identifier, and the second section includes the language and publisher identifiers. The check digit is used for the validity of the entire number.

ISBN Barcode
A 13-digit ISBN represented by an EAN barcode