Doug Wilhelm Books

After your dog goes missing, reality sets in. Someone has released a horde of Burmese pythons into the wild and they have devoured... everything. 9-12 year old readers will face off with evil poach...

A Wicked History

By Doug Wilhelm

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El planeta olvidado

By Doug Wilhelm

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Falling

By Doug Wilhelm

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Alexander the Great

By Doug Wilhelm

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Alexander the Great

By Doug Wilhelm

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Search the Amazon

By Doug Wilhelm

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True Shoes

By Doug Wilhelm

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Revealers

By Doug Wilhelm

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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.