Ron Koertge Books

Strays

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Could life as a foster kid lead to unexpected benefits? A teenager’s link to animals gives way to human connection in a smart, incisive novel.Sixteen-year-old Ted O’Connor’s paren...

Shakespeare Makes the Playoffs

By Ron Koertge

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Fielding his social life is a bigger challenge for Kevin than hitting a fastball in Ron Koertge’s funny, insightful sequel to Shakespeare Bats Cleanup.Fourteen-year-old Kevin Boland has...

Shakespeare Makes the Playoffs

By Ron Koertge

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Taking Aim

By Ron Koertge, Michael Cart

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Sadie s Story

By Ron Koertge, Christine Heppermann

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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.