Glenn Mitchell Books

E.C. Segar created Popeye the Sailor in his "Thimble Theatre" comic strip back in 1929. The character was only intended to pass through one particular story but seemed to have ideas of his own. The...

The collapse of the dollar & the approaching catastrophe in the world monetary order

By Mitchell Glenn.

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Functionality of Trade Dress

By Stephen F. Mohr, Glenn Mitchell

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Pursuing excellence

By Glenn Mitchell

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Notes on freedom

By Glenn Mitchell

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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.