David A. Adler Books

The First Day of School Mystery

By David A. Adler

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The School Play Mystery

By David A. Adler

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The Tennis Trophy Mystery

By David A. Adler

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Cam Jansen and the Sports Day Mysteries

By David A. Adler

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Cam Jansen and the wedding cake mystery

By David A. Adler

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Cam Jansen and her friends are volunteering at the local senior center talent show. They're having fun entertaining the guests and enjoying treats donated by Ken's Bakeshop. But during the show som...

Danny s Doodles

By David A. Adler

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Danny s Doodles

By David A. Adler

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CAM Jansen First Day of School Mystery

By David A. Adler

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Young Cam Jansen and the Spotted Cat Mystery

By David A. Adler

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School Trouble for Andy Russell Andy Russell Numbered

By David A. Adler

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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.