Al Janssen Books

Secret Believers
Operation Desert Light
Choices for Graduates
Choices for Graduates

By Al Janssen

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Lifer
Lifer

By Ted Winters, Al Janssen

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Destination, moon
Destination, moon

By James B. Irwin

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James Irwin describes his training and schooling to become an astronaut and his participation in the Apollo 15 voyage to the moon where he conducted experiments, explored the moon's surface, and ma...

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Breakaway
Breakaway

By Al Janssen

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Fast break
Fast break

By Al Janssen

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One Way to Play Football
One Way to Play Football

By Al Janssen

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The Marriage Masterpiece
The Marriage Masterpiece

By Al Janssen

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The Marriage Masterpiece
The Marriage Masterpiece

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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.

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