William C. Haponski Books

Back to School

By William C. Haponski

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Back to School

By William Haponski

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Back to school

By William C. Haponski

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The Education and Career Planning Guide for Adults

By William C. Haponski

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No matter how long you've been out of the classroom, NEW HORIZONS will help your journey back in. Whether you are thinking about taking a single course or are already enrolled in a degree program,...

Your College Degree

By William C. Haponski

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College Comes to You

By William C. Haponski

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Autopsy of an Unwinnable War

By Jerry J. Burcham, William C. Haponski, Dave R. Palmer

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Autopsy of an Unwinnable War

By Col. William C. Haponski Ret

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One Hell of a Ride

By Ret William C. Haponski

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.