Jonathan Friesen Books

Both of me

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"When her carry-on bag is accidentally switched with Elias's identical pack, Clara uses the luggage tag to track down her things. At that address she discovers there is not one Elias Phinn, but two"--

Both of me

By Jonathan Friesen

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Jerk California

By Jonathan Friesen

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Jerk, California

By Jonathan Friesen

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Jerk, California

By Jonathan Friesen

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Read Jonathan Friesen's posts on the Penguin Blog. This Schneider Family Book Award winner changed the face of Tourette's Syndrome for modern teens. Wrought with tension, romance, and hope, Jerk, C...

Mayday

By Jonathan Friesen

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Nan Yang

By Geenette Goden, Jonathan Friesen

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Jerk, California

By Jonathan Friesen

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Twitch, Jerk, FreakÂ-Sam Carrier has been called them all. Because of his TouretteÂ's syndrome, Sam is in near constant motion with tics and twitches and verbal outbursts. So, of course, high schoo...

Aquifer

By Jonathan Friesen

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Aquifer

By Jonathan Friesen

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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.