Erica S. Perl Books

Aces Wild

By Erica S. Perl

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When life gives you O.J

By Erica S. Perl

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For years, ten-year-old Zelly has tried to convince her parents to let her have a dog, but when her eccentric grandfather, Ace, hatches a plan involving a "practice dog" named O.J., Zelly is not su...

When life gives you O.J

By Erica S. Perl

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The Capybara Conspiracy

By Erica S. Perl

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The Capybara Conspiracy

By Erica S. Perl

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When life gives you O.J.

By Erica S. Perl

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Zelly Fried wants a dog more than anything, so at the urging of her grandfather, during the summer before sixth grade she takes care of a "practice dog" made out of an orange juice jug to show her...

Chicken Butt

By Erica S. Perl

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Chicken Butt s Back

By Erica S. Perl

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When life gives you O.J.

By Erica S. Perl

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Zelly Fried wants a dog more than anything, so at the urging of her grandfather, during the summer before sixth grade she takes care of a "practice dog" made out of an orange juice jug to show her...

Goatilocks and the Three Bears

By Erica S. Perl

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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.